Subject: Daily Scan of COVID-19 Scientific Publications / survol journalier des publications scientifiques du COVID-19, 2020-11-12

 

Good afternoon,

There are 487 citations in today’s scan. 270 were considered primary research or review literature.

Highlights today include:

 

CANADA

·       Rotshenker-Olshinka et al.  A retrospective cohort study conducted at a university-affiliated fertility center in Montreal, Quebec, since the COVID-19 shut down, March 13 until May 6, 2020. This study aims to evaluate the effect of the COVID-19 pandemic state on early, first-trimester pregnancies. The COVID-19 pandemic environment does not seem to affect early first-trimester miscarriage rates in asymptomatic patients.

PUBLIC HEALTH INTERVENTION

·       Peng et al  performed extensive simulations to evaluate the performance of quarantine strategies with one or more tests administered during quarantine in order to assess a test result based quarantine period. They found that SARS-CoV-2 testing can effectively reduce the length of quarantine without compromising personal or public safety. Whereas a single RT-PCR test performed before the end of quarantine can reduce the duration of quarantine to 10 days, two tests can further reduce the duration to 8-days and three tests with a highly sensitive RT-PCR test can justify a 6-day quarantine.

IPAC

·       Sousan et al assess the efficiency of the Halyard H600 as a respirator filtering material as compared to the NIOSH-certified N95 and P100 filters, and determine if H600 is a good alternative for respiratory protection for healthcare professionals during the COVID-19 pandemic. The high variability in filter efficiency for particles ≤324 nm and the increased fabric breathing resistance demonstrate that the Halyard H600 has an inferior performance and is not a good substitute for N95 and P100.

·       Steinhauer et al demonstrate that two commercially available formulations for surface disinfection and one formulation for hand disinfection claiming “virucidal activity against enveloped viruses” are effectively inactivating SARS-CoV-2. This study emphasizes that chemical disinfectants claiming “virucidal activity against enveloped viruses” are an effective choice to target enveloped SARS-CoV-2 as a preventive measure.

TRANSMISSION

·       Placzek et al., determined that neonatal SARS-CoV2 infection was rare in the UK

·       Zhou and Ji investigate the transport of droplet aerosols generated by both doctors and patients to seek measures to reduce the risk of infection. Their results show that purification of the same number of droplet aerosols and purification by ventilation work better for coughing than for talking. The best ventilation performance appeared for the case of a patient sitting and coughing (PSC), while the case of a patient lying and talking (PLT) was the worst.

EPIDEMIOLOGY

·       Selhorst et al. A case of re-infection was observed in a Belgian nosocomial outbreak involving 3 patients and 2 health care workers. The symptomatic re-infection occurred after an interval of 185 days, despite the development of an effective humoral immune response following symptomatic primary infection. The second episode, however, was milder and characterized by a fast rise in serum IgG and neutralizing antibodies. Although contact tracing and virus culture remained inconclusive, the health care worker formed a transmission cluster with 3 patients and showed evidence of virus replication but not of neutralizing antibodies in her nasopharyngeal swabs.

·       Peng et al identified the risk factors for redetectable positivity (RP), and to provide a basis for prevention and control of coronavirus disease‐2019 (COVID‐19) in children. Results find that family cluster infection, higher WBC count, and longer PT are the early risk factors for RP in recovered COVID‐19 children. The dynamic changes in number and ratio of CD4+ and CD8+ T lymphocytes may be involved in prolonged SARS‐CoV‐2 clearance.

CLINICAL DATA

·       Hellman et al demonstrated that the lungs of fatal Covid-19 contain hyaluronan, associated with inflammation and ARDS and may have the appearance of liquid jelly. Stainings confirmed that hyaluronan is obstructing alveoli with presence in exudate and plugs, as well as in thickened perialveolar interstitium. In contrast, normal lungs only showed hyaluronan in intact alveolar walls and perivascular tissue.

·       Bussani et al analyzed  41 COVID-19 infected individuals post-mortem. COVID-19 is a unique interstitial pneumonia characterized by extensive lung thrombosis, long-term persistence of viral RNA in pneumocytes and endothelial cells, along with the presence of infected cell syncytia. Several of COVID-19 features might be consequent to the persistence of virus-infected cells for the duration of the disease.

THERAPEUTICS

·       Self et al. conducted an RCT at 34 hospitals in the US, investigates whether treatment with hydroxychloroquine improve clinical outcomes of adults hospitalized with coronavirus disease 2019 (COVID-19). The distribution of the day 14 clinical status score was not significantly different for patients randomized to receive hydroxychloroquine compared with placebo. These findings do not support the use of hydroxychloroquine for treatment of COVID-19 among hospitalized adults.

·       Dhibar et al. report on a clinical trial to evaluate the efficacy of hydroxychloroquine (HCQ) as post exposure prophylaxis (PEP) to prevent COVID-19 in asymptomatic, high risk, household contacts of the laboratory confirmed COVID-19 cases. The study found that there was significant risk reduction for the incidence of COVID-19 in participants who received PEP with HCQ plus standard therapy, as compared to standard therapy alone.

 

Regards,

Lisa Waddell, Tricia Corrin, Rukshanda Ahmad, Robyn Odell, Maribeth Mitri, Julie Theriault, Dobrila Todoric, Austyn Baumeister, Anam Khan, Musaab Younis, Lien Mi Tien, Dima Ayache, Angela Sloan, Kaitlin Young, Chatura Prematunge, Ainsley Otten, Irene Yong, Drew Greydanus, Shalane Ha, Jessie Varga, Vanessa Zubach, Meenu Sharma, Kristyn Burak, David Knox, Joanne Hiebert, Clifford Clark, Catherine Card, Ruey Su, Paul McLaren

 

 

 Daily Scan of COVID-19 Scientific Publications / Survol journalier des publications scientifiques du COVID-19		12/11/2020
 


Focus areas: Modelling/ prediction, Epidemiology, Transmission, Clinical data, Long-term Sequelae, Mental Health, Surveillance, Coronavirology, Diagnostics / Pathogen detection, Therapeutics, Vaccine Research, Public health interventions, Public Health response, Public Health Priorities, IPAC, Health care response, Immunology, Economics, Animal model, Zoonoses, Review Literature, Commentary/Editorial, news

Domaines cibles: Modélisation/prédiction, Épidémiologie, Transmission, Données cliniques, Séquelles à long terme, Santé mentale ,Surveillance, Coronavirologie, Diagnostics / Détection d'agents pathogènes, Thérapeutique, Recherche sur les vaccins, Interventions de santé publique, Priorités de santé publique, PCI, Réponse des soins de santé, Immunologie, économie, Modèle animal, Zoonoses, Revue de littérature, Commentaire/Éditorial, journaux

 

PUBLICATIONS

AUTHORS / AUTEURS

SOURCE

FOCI / DOMAINE

SUMMARY / SOMMAIRE

Resistance of endothelial cells to SARS-CoV-2 infection in vitro

Ahmetaj-Shala,  Blerina,  Peacock, et al

bioRxiv

Coronavirology| Coronavirologie

To determine infectibility of primary endothelial cell lines with live SARS-CoV-2 and pseudoviruses expressing SARS-CoV-2 spike protein. Expression of ACE2 and BSG pathways genes was determined in three types of endothelial cells; blood outgrowth, lung microvascular and aortic endothelial cells. For comparison nasal epithelial cells, Vero E6 cells and HEK 293T cells transfected with either ACE2 or BSG were used as controls. Endothelial cells are resistant to infection with SARS-CoV-2 virus, in line with relatively low levels of ACE2 and TMPRSS2, suggesting that the vascular dysfunction and thrombosis seen in severe COVID-19 is a result of factors released by adjacent infected cells (e.g. epithelial cells) and/or circulating, systemic inflammatory mediators.

GP-LVM of categorical data from test-positive COVID-19 pregnant women

Ajirak,  Marzieh,  Heiselman, et al

arXiv

Epidemiology| Épidémiologie Clinical data| Données cliniques

In this paper, we model categorical variables of 89 test-positive COVID-19 pregnant women within the unsupervised Bayesian framework. We model the data using latent Gaussian processes for density estimation of multivariate categorical data. The results show that the model can find latent patterns in the data, which in turn could provide additional insights into the study of pregnant women that are COVID-19 positive.

Exploring the linkage between PM(2.5) levels and COVID-19 Spread and its implications for socio-economic circles

Ali,  SM,  Malik, et al

Environ Res

Epidemiology| Épidémiologie

This paper focuses on how the particulate matter pollution was reduced during the lockdown period (23 March to 15 April 2020) as compared to before lockdown. Both datasets have shown a substantial reduction in PM(2.5) pollution levels (ranging from 13 to 33% in case of satellite observations, while 23 to 58 % in ground-based observations) across Pakistan. Result shows a higher rate of COVID-19 spread in major cities of Pakistan in cities of Pakistan with poor air quality conditions. Yet more research is needed in order to establish linkage between COVID-19 spread and air pollution. However, it can be partially attributed to both higher rate of population density and frequent exposure of population to enhanced levels of PM(2.5) concentrations before lockdown period.

Correlation of chest radiography findings with the severity and progression of COVID-19 pneumonia

Al-Smadi,  A,  Bhatnagar, et al

Clin Imaging

Epidemiology| Épidémiologie Clinical data| Données cliniques

Aim is to assess the temporal changes and prognostic value of chest radiograph (CXR) in COVID-19 patients. A retrospective study of 62 confirmed COVID-19 patients were evaluated for clinical features. 56 of these (total: 325 CXRs) were evaluated for radiological findings. Common patterns were progression from lower to upper zones, peripheral to diffuse involvement, & from ground glass opacities to consolidation. Consolidations starting peripherally were noted in 76%, 93% and 48% with critical outcomes, respectively. The interobserver agreement of the CoV-P category of CXRs in the critical and non-critical outcome groups were good and excellent, respectively (τ coefficient = 0.6 & 1.0). Significant association was observed between CoV-P2 and clinical deterioration into a critical status (χ2 = 27.7, p = 0.0001) with high sensitivity (95%) and specificity (71%) within a median interval time of 2 days (range: 0-4 days). Involvement of predominantly 4 or more zones on frontal chest radiograph can be used as predictive prognostic indicator of poorer outcome in COVID-19 patients.

The Fundamental Role of Prophylactic Anticoagulation Therapy and the Complications of Hypercoagulability in Patients infected with Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)

Alwaeli,  Haidar,  Shabbir, et al

Research Square prepub

Clinical data| Données cliniques

This case series presents seven COVID-19 patients who have received anticoagulation therapy over the course of the disease. Additionally, the correlation between thromboembolic complications secondary to COVID-19, prophylactic use of anticoagulation therapy and the significant pathological findings that might arise will be assessed and discussed in great details.

The impact of confinement in the psychosocial behaviour due COVID-19 among members of a Brazilian university

Amaral-Prado,  H,  Borghi, et al

Int J Soc Psychiatry

Mental Health |
santé mentale

The aim of this study was to analyze and compare perceived stress, resilience, depression symptoms and coping strategies on the members of University of Campinas, in Brazil, before and during the outbreak of the COVID-19. We obtained 1,135 responses (893 before COVID-19 and 242 during COVID-19). The volunteers did not show significant differences for perceived stress, depressive signs and resilience before and during the pandemic. In both periods, men exhibited lower scores for perceived stress and depression and higher scores for resilience when compared to women. Undergraduate and graduate students exhibited higher perceived stress scores, more pronounced depressive signs and lower resilience, and employees and professors presented lower scores for perceived stress, depressive signs and greater resilience.

Découverte fortuite d’un cas de COVID-19 par TEP-TDM

Amin,  R,  Grinblat, et al

CMAJ

Clinical data| Données cliniques

A 58-year-old diabetic and morbidly obese (body mass index: 44.3 kg / m2) woman presented for an outpatient consultation for the usual staging of her Hodgkin lymphoma who tested positive or COVID-19

Study of risk factors and psychological impact in physicians diagnosed with COVID-19: An online, postexposure, cross-sectional survey

Bajaj,  J,  Solanki, et al

Journal of Anaesthesiology Clinical Pharmacology

Mental Health |
santé mentale

This study attempts to highlight the risk factors and psychological impact on doctors who have tested positive for COVID-19.  This online cross-sectional survey-based study includes 51 doctors of all specialities of in Mumbai, India, who had tested positive for novel coronavirus. Most of them were (67%) postgraduate students. Forty-three (85%) respondents were working in a COVID-19 center. Twenty-three (45%) had a history of contact with these patients without proper PPE with unknown COVID-19 status of the patient at the time of contact. Ten percent regretted their decision of becoming a doctor. Only half (51%) had family support during their illness and 45% relied on friends and colleagues in the hospital. Twenty-six percent mentioned having a low mood throughout the illness. A major portion of people (32%) having fear of severe illness and death.

Immunoprotective potential of Ayurvedic herb Kalmegh (Andrographis paniculata) against respiratory viral infections - LC-MS/MS and network pharmacology analysis

Banerjee,  S,  Kar, et al

Phytochem Anal

Coronavirology| Coronavirologie Therapeutics| Thérapeutique

In India, AYUSH systems of medicine have been promoted as an immune-protection strategy. Andrographis paniculata (Burm. F) Nees (AP) mentioned in Ayurveda has been widely used for treating sore throat, flu, and upper respiratory tract infections which may provide possible novel therapeutic approaches, exclusively targeting SARS-CoV-2 and its pathways. The molecules from kalmegh provides immune-protection and anti-viral response via involving different pathways, like toll-like receptor pathway, PI3/AKT pathway and MAP kinase pathways against COVID-19 infection. The KEGG analysis showed that in a vast majority of the most enriched pathways, AP were associated with viral infections and upper respiratory tract infections. The results suggest a synergy between andrographolide and other molecules identified as safe and efficacious anti-inflammatory agent having effects on upper respiratory tract infections and can significantly decrease the production of cytokines and pro-inflammatory factors in viral infections.

PMC7598751; Trust and compliance to public health policies in times of COVID-19

Bargain,  O,  Aminjonov, et al

J Public Econ

Public Health response| Interventions de santé publique

While degraded trust and cohesion within a country are often shown to have large socio-economic impacts, they can also have dramatic consequences when compliance is required for collective survival. We illustrate this point in the context of the COVID-19 crisis. Policy responses all over the world aim to reduce social interaction and limit contagion. Using data on human mobility and political trust at regional level in Europe, we examine whether the compliance to these containment policies depends on the level of trust in policy makers prior to the crisis. Using a double difference approach around the time of lockdown announcements, we find that high-trust regions decrease their mobility related to non-necessary activities significantly more than low-trust regions. We also exploit country and time variation in treatment using the daily strictness of national policies. The efficiency of policy stringency in terms of mobility reduction significantly increases with trust. The trust effect is nonlinear and increases with the degree of stringency. We assess how the impact of trust on mobility potentially translates in terms of mortality growth rate.

Tracking the Dynamics and Allocating Tests for COVID-19 in Real-Time: An Acceleration Index with an Application to French Age Groups and Départements

Baunez,  Christelle,  Degoulet, et al

SSRN- Lancet prepublication

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie

An acceleration index is proposed as a novel indicator to track the dynamics of the COVID-19 iin real-time. Using French data on confirmed cases and tests for the period following the first lock-down - from May 13, 2020, onwards - our acceleration index shows that the ongoing pandemic resurgence can be dated to begin around July 7. It uncovers the fact that the pandemic acceleration has been stronger than national average for the 59 − 68] and 69 − 78] age groups since early September, the latter being associated with the strongest acceleration index, as of October 25. In contrast, acceleration among the 19 − 28] age group is the lowest and is about half that of the 69 − 78], as of October 25. In addition, we propose an algorithm to allocate tests among French départements, based on both the acceleration of the pandemic and the feedback effect of testing. Our acceleration-based allocation differs significantly from the actual distribution over French territories, which is population-based. We argue that both our acceleration index and our allocation algorithm are useful tools to guide public health policies as France enters a second lock-down period with indeterminate duration.

Recommendations for sample pooling on the Cepheid GeneXpert® system using the Cepheid Xpert® Xpress SARS-CoV-2 assay

Becker,  MG,  Taylor, et al

PLoS One

Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

Here, we provide support for the adoption of sample pooling with the point-of-care Cepheid Xpert® Xpress SARS-CoV-2 molecular assay. Corroborating previous findings, the limit of detection of this assay was comparable to laboratory-developed reverse-transcription quantitative PCR SARS-CoV-2 tests, with observed detection below 100 copies/mL. The Xpert® Xpress assay detected SARS-CoV-2 after samples with minimum viral loads of 461 copies/mL were pooled in groups of six. Based on these data, we recommend the adoption of pooled testing with the Xpert® Xpress SARS-CoV-2 assay where warranted based on public health needs. The suggested number of samples per pool, or the pooling depth, is unique for each point-of-care testing site and can be determined by the positive test rates.

Morphological patterns and distributions in portable chest radiographs of COVID-19-positive cases admitted to a tertiary care hospital: An early experience from Scandinavia

Bharadwaz,  A,  Langfeldt, et al

J Med Imaging Radiat Oncol

Clinical data| Données cliniques Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

The purpose of this article is to describe the morphological and distributional patterns of the lung opacities in CXR and to classify the spectrum of essential features on portable AP chest radiographs of PCR-positive COVID-19 patients admitted in a tertiary care hospital in Scandinavia. A retrospective analysis of twenty (20) RT-PCR-positive COVID-19 patients admitted to the hospital between 12.03.2020 to 10.04.2020 was done in this study. Most patients had ground-glass opacities (80-85%) and interspersed interstitial opacities (70-75%), often with a characteristic appearance. The opacities were mostly bilateral (80%) and distributed in the lower zones (and to some extent mid zones) and in the middle and peripheral regions, with a tendency to merge towards the hilar areas. There were high interobserver agreements among various parameters and no significant statistical difference between observer 1 and 2.

PMC7499634; Environmental and Aerosolized Severe Acute Respiratory Syndrome Coronavirus 2 Among Hospitalized Coronavirus Disease 2019 Patients

Binder,  RA,  Alarja, et al

J Infect Dis

Epidemiology| Épidémiologie Transmission

During April and May 2020, we studied 20 patients hospitalized with coronavirus disease 2019 (COVID-19), their hospital rooms (fomites and aerosols), and their close contacts for molecular and culture evidence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Among >400 samples, we found molecular evidence of virus in most sample types, especially the nasopharyngeal (NP), saliva, and fecal samples, but the prevalence of molecular positivity among fomites and aerosols was low. The agreement between NP swab and saliva positivity was high (89.5%; κ = 0.79). Two NP swabs collected from patients on days 1 and 7 post-symptom onset had evidence of infectious virus (2 passages over 14 days in Vero E6 cells). In summary, the low molecular prevalence and lack of viable SARS-CoV-2 virus in fomites and air samples implied low nosocomial risk of SARS-CoV-2 transmission through inanimate objects or aerosols.

PMC7605746; Estimating the cumulative rate of SARS-CoV-2 infection

Bollinger,  CR,  van Hasselt, et al

Econ Lett

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie

Accurate estimates of the cumulative incidence of SARS-CoV-2 infection remain elusive. Among the reasons for this are that tests for the virus are not randomly administered, and that the most commonly used tests can yield a substantial fraction of false negatives. In this article, we propose a simple and easy-to-use Bayesian model to estimate the infection rate, which is only partially identified. The model is based on the mapping from the fraction of positive test results to the cumulative infection rate, which depends on two unknown quantities: the probability of a false negative test result and a measure of testing bias towards the infected population. Accumulating evidence about SARS-CoV-2 can be incorporated into the model, which will lead to more precise inference about the infection rate.

Does therapy with biological drugs influence COVID-19 infection? Observational, monocentric prevalence study on the clinical and epidemiological data of psoriatic patients treated with biological drugs or with topical drugs alone

Brazzelli,  V,  Isoletta, et al

Dermatol Ther

Epidemiology| Épidémiologie Clinical data| Données cliniques

The impact of biologic drugs used in the treatment of psoriasis, do patients  suffer from increased morbidity and mortality from COVID-19, compared to psoriatic patients treated only with topical drugs?  A total of 180 patients were enrolled in two groups: 100 patients in the topical therapy group, and 80 patients in the biologic therapy group. No statistically significant difference was found between the groups regarding the prevalence of COVID-19 infection and symptoms at a bivariable analysis with adjustment for confounders.

Hydroxychloroquine vs. Azithromycin for Hospitalized Patients with COVID-19 (HAHPS): Results of a Randomized, Active Comparator Trial

Brown,  SM,  Peltan, et al

Ann Am Thorac Soc

Therapeutics| Thérapeutique RCT

We performed a randomized clinical trial of hydroxychloroquine vs. azithromycin among hospitalized patients with COVID-19. Treatment was 5 days of study medication. The primary endpoint was the COVID Ordinal Outcomes scale at day 14. The trial was stopped early after enrollment of 85 patients when a separate clinical trial concluded that a clinically important effect of hydroxychloroquine over placebo was definitively excluded. Comparisons were made a priori using a proportional odds model from a Bayesian perspective. The estimated odds ratio for less favorable status on the ordinal scale for hydroxychloroquine vs. azithromycin from the primary analysis was 1.07, with a 95% credible interval from 0.63 to 1.83 with a posterior probability of 60% that hydroxychloroquine was worse than azithryomycin. Secondary outcomes displayed a similar, slight preference for azithromycin over hydroxychloroquine. The twenty safety outcomes were similar between arms with the possible exception of post-randomization onset acute kidney injury, which was more common with hydroxychloroquine (15% vs. 0%). Patients in the hydroxychloroquine arm received remdesivir more often than in the azithromycin arm (19% vs. 2%). There was no apparent association between remdesivir use and acute kidney injury. While early termination limits the precision of our results, we found no suggestion of substantial efficacy for hydroxychloroquine over azithromycin. Acute kidney injury may be more common with hydroxychloroquine than azithromycin, although this may be due to the play of chance. Differential use of remdesivir may have biased our results in favor of hydroxychloroquine. Our results are consistent with conclusions from other trials that hydroxychloroquine cannot be recommended for inpatients with COVID-19; azithromycin may merit additional investigation.

Persistence of Viral RNA, Pneumocyte Syncytia and Thrombosis Are Hallmarks of Advanced COVID-19 Pathology

Bussani,  Rossana,  Schneider, et al

SSRN- Lancet prepublication

Clinical data| Données cliniques Coronavirology| Coronavirologie Immunology | Immunologie

Post-mortem analyses of  41 COVID-19 infected individuals. Histological analysis is complemented by immunohistochemistry for cellular and viral antigens and the detection of viral genomes by in situ RNA hybridization. COVID-19 is a unique interstitial pneumonia characterized by extensive lung thrombosis, long-term persistence of viral RNA in pneumocytes and endothelial cells, along with the presence of infected cell syncytia. Several of COVID-19 features might be consequent to the persistence of virus-infected cells for the duration of the disease.

Patient and Provider Risk in Managing ST-Elevation Myocardial Infarction During the COVID-19 Pandemic: A Decision Analysis

Butala,  NM,  Patel, et al

Circ Cardiovasc Interv

Healthcare Response | Réponse des soins de santé

We quantified the impact of different STEMI treatment strategies on patient outcomes and provider risk in context of the COVID-19 pandemic. Usual care with PPCI remains the appropriate treatment strategy in the majority of cases presenting with STEMI in the setting of the COVID-19 pandemic. However, utilization of a pharmaco-invasive strategy in selected patients with STEMI with presumptive COVID-19 and low likelihood of mortality from STEMI and use of preventive strategies such as preprocedural intubation in high risk patients when PPCI is the preferred strategy may be reasonable to reduce provider risk of COVID-19 infection.

Evaluation of lifestyle, attitude and stressful impact amid COVID-19 among adults in Shanghai, China

Cao,  Y,  Ma, et al

Int J Environ Health Res

Mental Health |
santé mentale

Although the COVID-19 pandemic was correlated with high stressful impact, it had associated with some positive mental-health related changes in an urban environment.

Ferritin is associated with the severity of lung involvement but not with worse prognosis in patients with COVID-19: data from two Italian COVID-19 Units

Carubbi,  Francesco,  Salvati, et al

Research Square prepub

Epidemiology| Épidémiologie Clinical data| Données cliniques

We conducted a retrospective evaluation of hospitalized patients in order to identify relationships between clinical, serological, imaging data and disease outcomes in patients with COVID-19. We demonstrated that ferritin levels over the 25th percentile are associated with a more severe pulmonary involvement, independently of age and gender and not associated with disease outcomes.

Systemic Capillary Leak Syndrome Secondary to Coronavirus Disease 2019

Case,  R,  Ramaniuk, et al

Chest

Clinical data| Données cliniques

This is the first reported case of systemic capillary leak syndrome associated with COVID-19 infection.

Stigmatisation associated with COVID-19 in the general Colombian population

Cassiani-Miranda,  C,  Campo-Arias, et al

Int J Soc Psychiatry

Public Health response| Interventions de santé publique Healthcare Response | Réponse des soins de santé

The aim of this study was to determine the association between stigmatisation and fear of COVID-19 in the general population of Colombia. Stigma-discrimination towards COVID-19 is frequent in the Colombian population and is associated with high levels of fear towards said disease, mainly people who are not health workers.

Pleural complications in patients with coronavirus disease 2019 (COVID-19): how to safely apply and follow-up with a chest tube during the pandemic?

Ceylan,  KC,  Batihan, et al

Eur J Cardiothorac Surg

Clinical data| Données cliniques Healthcare Response | Réponse des soins de santé

Our main goal was to  describe a new drainage technique to prevent viral transmission during chest tube application and follow-up. A high-efficiency particulate air filter mounted double-bottle technique was used to prevent viral transmission.

Real-time, interactive website for US-county-level COVID-19 event risk assessment

Chande,  A,  Lee, et al

Nat Hum Behav

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie

To provide real-time, geolocalized risk information, we developed an interactive online dashboard that estimates the risk that at least one individual with SARS-CoV-2 is present in gatherings of different sizes in the United States.

Randomized, double-blinded and placebo-controlled phase II trial of an inactivated SARS-CoV-2 vaccine in healthy adults

Che,  Y,  Liu, et al

Clin Infect Dis

Vaccine Research| Recherche sur les vaccins Immunology | Immunologie RCT

We evaluated an inactivated SARS-CoV-2 vaccine for immunogenicity and safety in adults aged 18-59 years. Adults vaccinated with inactivated SARS-CoV-2 vaccine had NAb as well as anti-S/N antibody, and had a low rate of adverse reactions.

PMC7505047; The efficacy and safety of traditional Chinese medicines, modified Radix Fici Simplicissimae, combined with Western medicines amongst patients infected with the 2019 novel coronavirus (SARS-CoV-2) in tropical tourist area, China

Chen,  J,  Tan, et al

Integr Med Res

Clinical data| Données cliniques Therapeutics| Thérapeutique

This study was conducted to assess the efficacy and safety of  Traditional Chinese Medicines containing modified Radix Fici Simplicissimae in combination with the Western medicines in the treatment of SARS-CoV-2 patients which were confirmed in Southern Hainan.

Cloning, Expression and Biophysical Characterization of a Yeast-expressed Recombinant SARS-CoV-2 Receptor Binding Domain COVID-19 Vaccine Candidate

Chen,  Wen-Hsiang,  Wei, et al

bioRxiv

Therapeutics| Thérapeutique Vaccine Research| Recherche sur les vaccins

We constructed three variants of the recombinant receptor-binding domain (RBD) of the SARS-CoV-2 spike (S) protein (residues 331-549) in yeast as follows: (1) a “wild type” RBD (RBD219-WT), (2) a deglycosylated form (RBD219-N1) by deleting the first N-glycosylation site, and (3) a combined deglycosylated and cysteine (C538A-Tmutated variant (RBD219-N1C1).  The selected deletion or mutations did not cause any significant structural changes or alteration of function. However, RBD219-N1C1 had a higher fermentation yield, was easier to purify, and had a lower tendency to form oligomers when compared to the other two proteins.

Impact of the COVID-19 Pandemic on Door-to-Balloon Time for Primary Percutaneous Coronary Intervention - Results From the Singapore Western STEMI Network

Chew,  NW,  Sia, et al

Circ J

Healthcare Response | Réponse des soins de santé

This study examined both D2B and clinical outcomes of patients with STEMI undergoing primary percutaneous coronary intervention (PPCI). The COVID-19 pandemic and the outbreak response have had an adverse effect on PPCI service efficiency. The study reinforces the need to focus efforts on shortening D2B time, while maintaining infection control measures.

PMC7314116; Hospitalized Patients With COVID-19 and Human Immunodeficiency Virus: A Case Series

Childs,  K,  Post, et al

Clin Infect Dis

Clinical data| Données cliniques

We report the clinical characteristics of 18 patients with human immunodeficiency virus PWH who were hospitalized with confirmed COVID-19.

LPD-12, a Promising Lipopeptide to Control COVID-19

Chowdhury,  T,  Baindara, et al

Int J Antimicrob Agents

Therapeutics| Thérapeutique

Seven different lipopeptides were assessed  for their ability to significantly interrupt spike the (S)-glycoprotein of SARS- CoV-2 binding with angiotensin-converting enzyme-2 (ACE2). Results confirm a strong binding affinity of LPD-12 with ACE2  which can also prevent the binding of S-protein, reciprocally.

Mid-Epidemic Forecasts of COVID-19 Cases and Deaths: A Bivariate Model applied to the UK

Congdon,  Peter

arXiv

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie

The evolution of the COVID-19 epidemic has been accompanied by accumulating evidence on the underlying epidemiological parameters. Hence there is potential for models providing mid-term forecasts of the epidemic trajectory using such information.

Nafamostat Mesylate in lipid carrier for nasal SARS-CoV2 titer reduction in a hamster model

Cornelissen,  Lisette,  Hoefsmit, et al

bioRxiv

Therapeutics| Thérapeutique Animal model | Modèle animal

Nafamostat (NM) has been shown in vitro to interfere with cellular virus entry by inhibition of the host transmembrane protease serine 2 (TMPRSS2), an enzyme required for SARS-CoV-2 spike protein cleavage, a prerequisite for cell entry. We hypothesized that nasal application of NM in a liposomal layer (as additional mechanical barrier) could lower the nasal viral load and subsequently reduce the severity of COVID-19.  A single NM application reduced nasal viral load, but did not favorably improve the outcome of COVID-19, likely due to the short half-time of NM.

Audiological profile of patients with sars-co-v-2 pcr-positive cases

Daikhes,  NA,  Karneeva, et al

Vestnik otorinolaringologii

Clinical data| Données cliniques

There were 78 patients who were confirmed positive for COVID-19 PCR-positive cases and 30 normal non-infected subjects in our study.  All patients underwent audiological evaluation included tympanometry, acoustic threshold and transient evoked otoacoustic emission (TEOAE). Although hearing sensitivity was normal among some participants, it was statistically proved that TEOAEs could pick up subtle deterioration in the outer hair cells functions and impact on the cochlear.

Psycho-social impact of social distancing and isolation due to the COVID-19 containment measures on patients with physical disabilities

Dalise,  S,  Tramonti, et al

Eur J Phys Rehabil Med

Mental Health |
santé mentale

134 patients with physical disability related to neurological disorders, who had their outpatient appointment cancelled because of the government dispositions, were enrolled  in this cross-sectional observational study to describe the overall impact of the pandemic on mental health, social condition and illness perception among patients with disabilities. People with physical disabilities surprisingly shown milder effects of the pandemic on their psychological state and good coping skills in facing social isolation, manifesting resilience resources.

The effect of tocilizumab on cytokine release syndrome in COVID-19 patients

de Cáceres,  C,  Martínez, et al

Pharmacol Rep

Clinical data| Données cliniques Therapeutics| Thérapeutique

A total of 75 patients with a clinical history of Accurate Respiratory Distress Syndrome (ARDS) were analysed, among whom, 19 had mild ARDS (25.3%), 37 moderate ARDS (49.4%) and 19 severe ARDS (25.3%) in this study to assess the efficacy and safety of tocilizumab (TCZ) and to investigate the factors related to the progress and mortality of patients. Treatment with TCZ was associated with a reduction of lymphocytopenia, C-reactive protein (CRP) levels, severe ARDS cases and fever. Although a better evolution of PaO2/FiO2 was observed in patients who received two or more doses of TCZ (38/75), there was an increase in their mortality (47.4%) and ICU admission (86.8%).

Telemonitoring type 1 diabetes patients during the COVID-19 pandemic in Brazil: was it useful?

de Mattos Matheus,  AS,  Cabizuca, et al

Arch Endocrinol Metab

Healthcare Response | Réponse des soins de santé

To evaluate the performance of telemonitoring in detecting clinical and psychological needs and adherence to the protective measures imposed by the COVID-19 pandemic in addition to providing remote assistance for patients with type 1 diabetes (T1D) in a public university center in Brazil. Telemonitoring T1D patients during the pandemic helped reduce the need for in-person consultations, detect clinical and psychological needs, and offer support to patients in addition to monitoring suspected COVID-19 cases and the adherence to protective measures.

Description of the position and performance of an echocardiogram by subcostal view during the prone position in a patient with severe pneumonia caused by COVID-19

Del Castillo Gordillo,  C,  Yañez Vidal, et al

BMJ Case Rep

Clinical data| Données cliniques

We describe a 54-year-old man who was admitted to a critical cardiovascular care unit for severe COVID-19 pneumonia. He developed catastrophic respiratory failure and required deep sedation, neuromuscular blockade and prone positioning.

Post Exposure Prophylaxis with Hydroxychloroquine (HCQ) for the Prevention of COVID-19, a Myth or a Reality? The PEP-CQ Study

Dhibar,  DDP,  Arora, et al

Int J Antimicrob Agents

Clinical data| Données cliniques Therapeutics| Thérapeutique

This study, which to our knowledge is the only clinical trial which dedicated to evaluate the efficacy of Hydroxychloroquine (HCQ) as post exposure prophylaxis (PEP) to prevent COVID-19 in asymptomatic, high risk, household contacts of the laboratory confirmed COVID-19 cases. The study found that there was significant risk reduction for the incidence of COVID-19 in participants who received PEP with HCQ plus standard therapy, as compared to standard therapy alone.

Hypocalcemia is a distinctive biochemical feature of hospitalized COVID-19 patients

di Filippo,  L,  Formenti, et al

Endocrine

Clinical data| Données cliniques

The aim of our study was to compare, for the first time in the literature, ionized calcium levels between two groups of patients hospitalized in the same period of the year with severe acute respiratory infections COVID-19 and non-COVID-19 related.  Our study suggests that hypocalcemia may be a distinctive biochemical feature of COVID-19 potentially impacting on disease clinical severity and representing a novel possible treatment target worth to be tested in this clinical setting.

A survey of physicians' appreciation and knowledge about airway safety measures in the wake of COVID-19 pandemic

Duggal,  S,  Ahuja, et al

Journal of Anaesthesiology Clinical Pharmacology

Healthcare Response | Réponse des soins de santé

Our study found satisfactory knowledge and appreciable concern among the practicing physicians regarding airway safety measures in the wake of COVID-19 pandemic. However, more physicians were aware about the measures required to be adopted 'during' airway intervention. The survey highlights the need for a more focused training of the caregivers about safety measures 'before' and 'after' airway intervention.

Secondary sclerosing cholangitis in critically ill patients: a rare disease precipitated by severe SARS-CoV-2 infection

Edwards,  K,  Allison, et al

BMJ Case Rep

Clinical data| Données cliniques

A case study of a previously well 59-year-old man required a prolonged intensive care unit stay due to severe COVID-19 symptoms.  This case demonstrates a rare disease (secondary sclerosing cholangitis) that has developed specifically in the context of SARS-CoV-2 infection. A review of current literature and the underlying pathophysiology for this rare disease are discussed, particularly in relation to COVID-19.

PMC7604086; Deep learning-based forecasting model for COVID-19 outbreak in Saudi Arabia

Elsheikh,  AH,  Saba, et al

Process Saf Environ Prot

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie Public health interventions*| Interventions de santé publique

In this study, long short-term memory (LSTM) network as a robust deep learning model is proposed to forecast the number of total confirmed cases, total recovered cases, and total deaths in Brazil, India, Saudi Arabia, South Africa, Spain, and USA. The forecasting accuracy of the model was assessed using seven statistical assessment criteria, namely, root mean square error (RMSE), coefficient of determination (R2), mean absolute error (MAE), efficiency coefficient (EC), overall index (OI), coefficient of variation (COV), and coefficient of residual mass (CRM). A reasonable forecasting accuracy was obtained.

Suspected appendicitis and COVID-19, a change in investigation and management-a multicentre cohort study

English,  W,  Habib Bedwani, et al

Langenbecks Arch Surg

Clinical data| Données cliniques Healthcare Response | Réponse des soins de santé

We performed a multicentre, prospective, observational study from the start of the new guidelines  to evaluate primarily the impact of the COVID-19 pandemic on the use of non-operative management in appendicitis with secondary outcomes including imaging, negative appendicectomy rate (NAR), length of stay (LOS) and 30-day complications. Despite the changes in practice, short-term complications did not increase and LOS decreased. Questions remain on the longer-term complication rates in non-operatively managed patients.

Mice with Induced Pulmonary Comorbidities Display Severe Lung Inflammation and Mortality following Exposure to SARS-CoV-2

Falach,  Reut,  Bar-On, et al

bioRxiv

Animal model | Modèle animal

Here we report SARS-CoV-2 infection after application of low-doses of the acute-lung-injury stimulants bleomycin or ricin in  SARS-CoV-2-refractive CD-1 mice which caused a severe disease , manifested by sustained body weight loss and mortality rates of >50%.  In summary, we present a novel mice-based animal model for the study of comorbidity-dependent severe COVID-19.

PMC7543426; Postmortem Findings in Italian Patients With COVID-19: A Descriptive Full Autopsy Study of Cases With and Without Comorbidities

Falasca,  L,  Nardacci, et al

J Infect Dis

Clinical data| Données cliniques

To further define the pathology caused by SARS-CoV-2 across all body organs, we performed autopsies on 22 patients with COVID-19 (18 with comorbidities and 4 without comorbidities) who died at the National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS Hospital, Rome, Italy.  SARS-CoV-2 infection causes multisystem disease and significant pathology in most organs in patients with and without comorbidities.

Cutaneous manifestations in patients with COVID-19: clinical and histological findings

Fattori,  A,  Cribier, et al

Hum Pathol

Clinical data| Données cliniques

This study aimed to describe histological features of cutaneous eruptions occurring concomitantly to SARS-CoV-2 infection and the presence of the virus in skin lesions. Skin biopsies from six patients presenting morbilliform eruption concomitant to SARS-CoV-2 were negative for SARS-CoV2 genome and protein and therefore not to directly caused by the virus.

Does the Lockdown Influence the Oral and Maxillofacial Surgery Service in a Level 1 Trauma Hospital During the Novel Coronavirus 2019 (COVID 19) Pandemia?

Figueiredo,  LB,  Araújo, et al

J Craniofac Surg

Healthcare Response | Réponse des soins de santé

The purpose of this study was to compare number and characteristics of patients admitted to a Level 1 Trauma Hospital in for Oral and Maxillofacial Surgery in Brazil during mandatory lockdown. There was a 52.27% decrease in total number of patients and 76.34% decrease in total consultations for oral and maxillofacial surgery during the lockdown.

Development and internal validation of a diagnostic prediction model for COVID-19 at time of admission to hospital

Fink,  DL,  Khan, et al

QJM

Modelling/ prediction| Modélisation/prédiction Healthcare Response | Réponse des soins de santé

This study aimed to generate a COVID-19 diagnosis risk score for use at the time of hospital admission using the TRIPOD checklist. 581 individuals were admitted with suspected COVID-19. The final multivariable model had AUC 0.85 and used 6 clinical variables that are routinely available in most settings.

SARS-CoV-2 may not cause unilateral hypoglossal nerve palsy after a fortnight of intubation

Finsterer,  J,  Scorza, et al

Am J Phys Med Rehabil

Clinical data| Données cliniques

Abstract and full text not available.

Projected impact of COVID-19 mitigation strategies on hospital services in the Mexico City Metropolitan Area

Fowler,  Z,  Moeller, et al

PLoS One

Modelling/ prediction| Modélisation/prédiction Healthcare Response | Réponse des soins de santé

This study aims to model the impact of COVID-19 in Mexico City  in three mitigation scenarios: (i) no social distancing, (ii) social distancing at 50% effectiveness (iii) social distancing at 60% effectiveness. Models showed social distancing delayed time to peak case volume, total number of peak cases and hospital occupancy rates.

PMC7586930; Robust and Specific Secretory IgA Against SARS-CoV-2 Detected in Human Milk

Fox,  A,  Marino, et al

iScience

Immunology | Immunologie

Breast milk samples from eight COVID-19-recovered and seven COVID-19-suspected donors were tested for antibody (Ab) binding to SARS-CoV2 proteins. All samples showed IgA reactivity to Spike protein, 80% had IgA binding to the Receptor-Binding Domain (RBD) and 67% of samples exhibited IgG and/or IgM binding to RBD.

A consensus statement for the management and rehabilitation of communication and swallowing function in the ICU: A global response to COVID-19

Freeman-Sanderson,  A,  Ward, et al

Arch Phys Med Rehabil

Healthcare Response | Réponse des soins de santé

The article presents a set of global consensus statements to facilitate planning and delivery of speech language pathology (SLP) rehabilitative care for patients admitted to the ICU with COVID-19, Statements were agreed upon by an international group of SLP experts from 6 continents representing 12 countries.

Characteristics and outcomes of neonatal SARS-CoV-2 infection in the UK: a prospective national cohort study using active surveillance

Gale,  Chris,  Quigley, et al

The Lancet Child & Adolescent Health

Epidemiology| Épidémiologie Transmission Clinical data| Données cliniques

This paper describe the characteristics of SARS-CoV-2 infection in 66 neonates (first 28 days of life) receiving inpatient hospital care in the UK. Of the 66 cases identified (incidence 5·6 [95% CI 4·3–7·1] per 10 000 livebirths), 28 (42%) had severe infection, 16 (24%) of whom were born preterm. Neonatal infection is uncommon in babies admitted to hospital. Infection with neonatal admission following birth to a mother with perinatal SARS-CoV-2 infection was unlikely, and possible vertical transmission rare

Comparing COVID-19 Critical Care Admissions by Minority Populations to Pre-COVID-19 Critical Care Utilization

Galiatsatos,  Panagis,  Page, et al

Research Square prepub

Epidemiology| Épidémiologie Clinical data| Données cliniques

Study aimed to see if COVID-19 ICU admissions reflect regional sociodemographic populations as well as ICU admission trends prior to the pandemic. Compared to pre-COVID-19 ICU admissions, there was an increase in African American versus White admissions and an increase in Hispanic/Latinx versus non-Hispanic/Latinx admissions.

Impact of the COVID-19 pandemic on anesthesiologists in India: A cross-sectional online survey of the practices, preparedness, and mind-set

Gangakhedkar,  G,  Solanki, et al

Journal of Anaesthesiology Clinical Pharmacology

Healthcare Response | Réponse des soins de santé

This study aims at assessment of the impact of COVID-19 on the practices followed, the preparedness, and mindset of anesthesiologists in India.  Of the 707 anesthesiologists who participated, 68.3% had already worked in a COVID-19 specialty unit. Only 41.7% of the anesthesiologists felt confident that they had sufficient knowledge to deal with COVID-19 infected patients. Fear of catching the infection and infecting loved ones were important causes of anxiety, which was seen in 95% of the participants. Majority of the participants, (64.5%) did not think that elective surgical procedures could be restarted at this point.

Granuloma annulare triggered by SARS-CoV-2 infection. The first reported case

García-Gil,  MF,  Monte Serrano, et al

J Dermatol

Clinical data| Données cliniques

This editorial presents the case of a 53‐year‐old female worker in a care home with COVID‐19 cases, presenting with an annular lesion on the second finger of her left hand (non‐dominant hand) and a papule on the knuckle of the same finger. Coinciding with the appearance of the lesions, the patient presented with anosmia, dysgeusia and cephalalgia. At that time, nasopharyngeal reverse transcription‐polymerase chain reaction (RT‐PCR) for SARS‐CoV‐2 was carried out, which was positive. The simultaneous appearance of the GA and the typical symptoms of COVID‐19, together with nasopharyngeal RT‐PCR for SARS‐CoV‐2 and the subsequent positive results for specific IgG antibodies 1 month after the cutaneous symptoms, allowed the diagnosis of localized GA triggered by SARS‐CoV‐2.

Fear of COVID-19 Scale for Hospital Staff in Regional Hospitals in Mexico: a Brief Report

García-Reyna,  B,  Castillo-García, et al

International Journal of Mental Health and Addiction

Healthcare Response | Réponse des soins de santé

This study used the Fear of COVID-19 Scale (FCV-19S) to assess the response to fear within health staff in Mexico. Found a global FCV-19S mean score of 19.3 ± 6.9, with a significant difference in scores between women and men. The survey showed a significantly higher level of fear in nursing and administrative personnel, which may be explained by the nursing staff being in close contact with infected patients and the administrative staff lacking understanding of the possible implications of the infection, compared with nonclinical hospital personnel.

Outcome of hospitalized patients with hematological malignancies and COVID-19 infection in a large urban healthcare trust in the United Kingdom

Garnett,  C,  Foldes, et al

Leuk Lymphoma

Clinical data| Données cliniques

This editorial describes a case series of 32 adult patients with a known diagnosis of a malignant or pre-malignant heamatological condition who presented to the hospital with symptomatic COVID-19 infection.

Socio-economic disparities in social distancing during the COVID-19 pandemic in the United States

Garnier,  Romain,  Benetka, et al

medRxiv

Public Health response| Interventions de santé publique

This study assessed how mobility patterns have varied across the United States during the COVID-19 pandemic, and identify associations with socio-economic factors of populations. Find that the speed, depth, and duration of social distancing in the United States is heterogeneous. Particularly showed that social distancing is slower and less intense in counties with higher proportions of people below the poverty level and essential workers; and in contrast, that social distancing is intense in counties with higher population densities and larger Black populations. Socio-economic inequalities appear to be associated with the levels of adoption of social distancing, potentially resulting in wide-ranging differences in the impact of COVID-19 in communities across the United States.

Prone positioning in mechanically ventilated patients with severe acute respiratory distress syndrome and coronavirus disease 2019

Gleissman,  H,  Forsgren, et al

Acta Anaesthesiol Scand

Clinical data| Données cliniques Healthcare Response | Réponse des soins de santé

This case series from a single, tertiary university hospital included all mechanically ventilated patients with COVID-19 and proning to determine whether proning increases oxygenation and to evaluate responders.  44 patients, 32 males/12 females, were treated with proning for a total of 138 sessions, with median (range) 2 (1-8) sessions. Median (IQR) time for the five sessions was 14 (12-17) hours. In the first session, median (IQR) PaO(2) :FiO(2) increased from 104 (86-122) to 161 (127-207) mm Hg (p<0.001). 36 out of 44 patients (82%) improved in PaO(2) :FiO(2) , with a significant increase in PaO(2) :FiO(2) in the first three sessions. Median (IQR) FiO(2) decreased from 0.7 (0.6-0.8) to 0.5 (0.35-0.6) (<0.001). A significant decrease occurred in the first three sessions. PaO(2) , tidal volumes, PEEP, mean arterial pressure and norepinephrine infusion did not differ. Primarily, patients with PaO(2) :FiO(2) approximately <120 mm Hg before treatment responded to proning. Age, sex, BMI, or SAPS 3 did not predict success in increasing PaO(2) :FiO(2) .

Reactivation of Elective Surgery During SARS-CoV-2 Pandemic: Pediatric Medically Necessary Time-Sensitive Score Implementation at a High-Complexity Pediatric Hospital

González Villarreal,  LC,  Castellanos Galván, et al

J Am Coll Surg

Healthcare Response | Réponse des soins de santé

This editorial reports on a tool -Medically Necessary Time Sensitive (pMeNTS) prioritization process score applied for surgical cases in the pediatric surgery department between May and June 2020, with the purpose of identifying an institutional cut-off value for objectively selecting candidates suited for elective surgery. Identified a lower mean score for both scheduled and deferred patient groups compared with the cut-off values suggested in the original study. Therefore,  concluded that this tool does not encompass substantial utility in our setting, possibly due to the fact that reasons other than procedure, disease, and patient-related factors influenced deferral of surgery for most patients.

Rehabilitation services lockdown during the COVID-19 emergency: the mental health response of caregivers of children with neurodevelopmental disabilities

Grumi,  S,  Provenzi, et al

Disabil Rehabil

Mental Health |
santé mentale

This study investigated the impact of the COVID-19-related rehabilitation services lockdown on the mental health of caregivers of children with neurodevelopmental disabilities. Worries about COVID-19 contagion and concerns for the child left without rehabilitation programs were the greatest sources of mental health burden for caregivers. Nonetheless, only the concerns for the child were significantly associated with caregivers' reports of stress, depressive and anxious symptoms.

A rational approach to manage surgical procedures in COVID Era - A perspective based on experience in a private referral hospital

Gupta,  R,  Mohan, et al

Journal of Anaesthesiology Clinical Pharmacology

Healthcare Response | Réponse des soins de santé

This study evaluated the hospital's approach and outcomes of surgical procedures performed during the initial period of COVID-19 pandemic so as to provide a road-map for safer approach. A total of 764 surgical procedures were conducted, of which 70.7% were elective essential surgeries, with 95.4% of these patients being discharged in stable healthy condition. Approximately 23% of the elective and 26% of the emergency surgeries was categorised in the surgical difficulty category III and majority of these were performed under general anesthesia. Postoperative mortality was 1.04%, but the overall mortality rate was approximately 2.5%. Only two patients (0.3%) tested positive for COVID-19 in this series.

Prevalence of SARS-CoV-2 among high-risk populations in Lomé (Togo) in 2020

Halatoko,  WA,  Konu, et al

PLoS One

Epidemiology| Épidémiologie

This survey estimated the prevalence of SARS-CoV-2 in high-risk populations in Lomé.  A total of 955 participants with a median age of 36 (IQR 32-43) were included, and 71.6% (n = 684) were men. Approximately 22.1% (n = 212) were from the air transport sector, 20.5% (n = 196) were from the police sector, and 38.7% (n = 370) were from the health sector. Seven participants (0.7%, 95% CI: 0.3-1.6%) had a positive rRT-PCR test result at the time of recruitment, and nine (0.9%, 95%CI: 0.4-1.8%) were seropositive for IgM or IgG against SARS-CoV-2. We found an overall prevalence of 1.6% (n = 15), 95% CI: 0.9-2.6%. The prevalence of SARS-CoV-2 infection among high-risk populations in Lomé was relatively low.

Efficacy and safety of transfusing plasma from COVID-19 survivors to COVID-19 victims with severe illness. A double-blinded controlled preliminary study

Hamdy Salman,  O,  Ail Mohamed, et al

Egyptian Journal of Anaesthesia

Epidemiology| Épidémiologie Clinical data| Données cliniques Therapeutics| Thérapeutique RCT

This study tested the efficacy and safety of transfusion plasma of recovered patients to treat patients with severe infection. Plasma of recovered COVID-19 resulted in improvement of laboratory and radiological findings. In recovered COVID-19 plasma group (RCP) group, there was statistically significant improvement of clinical parameters, as well as serum ferritin, D-dimer, c-reactive protein, and the size of lung lesion compared to control group (P ≤ 0.05). COVID-19 neutralizing antibodies appeared in serum of RCV patients, but failed to show in the control group patients during 5 days study period.

Development of a PCR-RFLP method for detection of D614G mutation in SARS-CoV-2

Hashemi,  SA,  Khoshi, et al

Infect Genet Evol

Coronavirology| Coronavirologie

This study describes a rapid and inexpensive method for the detection of D614G mutation in SARS-CoV-2. Using bioinformatics databases and software, the authors designed the PCR-RFLP method for D614G mutation detection. Evaluated 144 SARS-CoV-2 positive samples isolated in six months in Northeastern Iran. Results showed that the prevalent type is S-D in our isolates, and a small number of isolated belongs to the S-G type. Of 144 samples, 127 (88.2%) samples have belonged to type S-D, and 13 (9%) samples typed S-G. The first S-G type was detected on 2020 June 10.

Retrospective Post-mortem SARS-CoV-2 RT-PCR of Autopsies with COVID-19-Suggestive Pathology Supports the Absence of Lethal Community Spread in Basel, Switzerland, before February 2020

Haslbauer,  JD,  Perrina, et al

Pathobiology

Epidemiology| Épidémiologie Clinical data| Données cliniques

This study examined the earlier lethal community spread of COVID-19 in Basel before its initial reported emergence in Switzerland in March 2020.  A statistically significant rise in pulmonary causes of death was observed in March 2020 (p = 0.03), consistent with the reported emergence of lethal COVID-19 in Switzerland. A rise in lethal bronchopneumonia was observed between December 2019 and January 2020, which was likely seasonal. The incidence of lethal ARDS and PE was uniformly low between October 2019 and February 2020. All autopsy cases analyzed by means of SARS-CoV-2 RT-PCR yielded negative results.

PMC7644027; Profile of distress callers and service utilisation of tele-counselling among the population of Assam, India: an exploratory study during COVID-19

Hazarika,  M,  Das, et al

Open J Psychiatry Allied Sci

Mental Health |
santé mentale
Healthcare Response | Réponse des soins de santé

This study evaluated the sociodemographic profile of the distress callers, their psychosocial concerns, the interventions provided by the service provider, and whether the service users were satisfied with the intervention(s) or not during the period of lockdown (7-24 April 2020). A total of 239 callers used the tele-counselling services. The majority of callers were male (79.1%). Most of the callers were between 19-35 years of age group (66.5%), married (52.5%), and graduates (31%). Two-thirds of the callers called to seek guidance for their own issues and one-third for their relatives or friends. Callers had anxiety (46%), depressive disorder (8.3%), and depressive symptoms not qualifying for depressive disorder (14%), and suicidal thoughts (5.44%). The commonest intervention provided to the callers was supportive (77.8%), followed by psychoeducation (30.5%), cognitive behaviour therapy (24.7%), relaxation (23.6%) and behaviour therapy (13.4%). Most of the callers utilised more than one type of therapy. Overall, most of the callers were satisfied and appreciated the tele-counselling services.

Presence of hyaluronan in lung alveoli in severe Covid-19: An opening for new treatment options?

Hellman,  U,  Karlsson, et al

J Biol Chem

Clinical data| Données cliniques

This study demonstrated whether the lungs of fatal Covid-19 contain hyaluronan, as it is associated with inflammation and ARDS and may have the appearance of liquid jelly. Lung tissue obtained at autopsy from three deceased Covid-19 patients was processed for hyaluronan histochemistry and compared with staining in normal lung tissue. Stainings confirmed that hyaluronan is obstructing alveoli with presence in exudate and plugs, as well as in thickened perialveolar interstitium. In contrast, normal lungs only showed hyaluronan in intact alveolar walls and perivascular tissue. This is the first study to confirm prominent hyaluronan exudates in the alveolar spaces of Covid-19 lungs, supporting the notion that the macromolecule is involved in ARDS caused by SARS-CoV-2.

Rapid adaptation and continuous performance evaluation of SARS-CoV-2 envelope gene (E-gene) real-time RT-PCR assays to support the hospital surge in test demand

Ho,  YI,  Wong, et al

J Med Virol

Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

This study described timely adaption of both published WHO E-gene protocol and commercially available LightMix Modular E-gene assay to the test platform (ABI 7900 Fast real-time analyzer and TaqMan Fast One-step Virus Master Mix) available in an accredited tertiary hospital laboratory with on-going evaluation to ensure provision of quality service within time constraint. The LightMix Modular E-gene was slightly more sensitive when compared to the WHO E-gene, both analytically and diagnostically. The assay was recommended for screening of SARS-CoV-2 infection. Thermal cycling duration of the adapted LightMix E-gene and WHO E-gene is shortened by half and one hour respectively and allows the number of runs to double when 24-hour round-the-clock service is provided. Increase in testing capacity could support surges in testing demand, which is essential to control the current SARS-CoV-2 pandemic, to prevent potential overwhelming of the healthcare system and to optimize utilization of the isolation beds.

The Role of Health Care Human Factors in Responding to COVID-19: Findings From an Industry Survey

Howe,  J,  Parker, et al

Ergonomics in Design

Healthcare Response | Réponse des soins de santé

A survey of human factors practitioners working in health care was administered to understand their challenges and successes encountered when responding to the COVID-19 pandemic. Focus areas identified by survey respondents related to workflow, physical environments, communication, and implementation of new technologies. The results from this study can be used by human factors practitioners to demonstrate the common challenges and opportunities for applying human factors to system redesign within their health care organizations. These findings can also be used to encourage investments in human factors by health care organizations and the federal government. © 2020 by Human Factors and Ergonomics Society.

An Empirical Evaluation of Bluetooth-based Decentralized Contact Tracing in Crowds

Hsiao,  Hsu-Chun,  Huang, et al

arXiv

Public health interventions*| Interventions de sant&amp;eacute; publique

This study investigated the effectiveness of Bluetooth-based contact tracing in crowd environments with a total of 80 participants, emulating classrooms, moving lines, and other types of real-world gatherings. The results confirm that Bluetooth RSSI is unreliable for detecting proximity, and that this inaccuracy worsens in environments that are especially crowded.

Genetic variants are identified to increase risk of COVID-19 related mortality from UK Biobank data

Hu,  Jianchang,  Li, et al

medRxiv

Epidemiology| Épidémiologie Coronavirology| Coronavirologie

Studies have reported that males and some ethnic groups are at increased risk of death from COVID-19, which implies that individual risk of death might be influenced by host genetic factors. This project considers the mortality as the trait of interest and perform a genome-wide association study (GWAS) of data for 1,778 infected cases (445 deaths, 25.03%) distributed by the UK Biobank. Found 8 super-variants that are consistently identified across multiple replications as susceptibility loci for COVID-19 mortality. The identified risk factors on Chromosomes 2, 6, 7, 8, 10, 16, and 17 contain genetic variants and genes related to cilia dysfunctions (DNAH7 and CLUAP1), cardiovascular diseases (DES and SPEG), thromboembolic disease (STXBP5), mitochondrial dysfunctions (TOMM7), and innate immune system (WSB1). It is noteworthy that DNAH7 has been reported recently as the most downregulated gene after infecting human bronchial epithelial cells with SARS-CoV2.

PMC7606077; Population-weighted exposure to air pollution and COVID-19 incidence in Germany

Huang,  G,  Brown, et al

Spat Stat

Epidemiology| Épidémiologie

This study investigated whether long-term exposure to air pollution increases the risk of COVID-19 infection in Germany. The results show that nitrogen dioxide (NO 2 ) is significantly associated with COVID-19 incidence, with a 1 μg m -3 increase in long-term exposure to NO 2 increasing the COVID-19 incidence rate by 5.58% (95% credible interval CI]: 3.35%, 7.86%). This result is consistent across various models. The analyses can be reproduced and updated routinely using public data sources and shared R code.

A cohort study of 676 patients indicates D-dimer is a critical risk factor for the mortality of COVID-19

Huang,  Y,  Lyu, et al

PLoS One

Epidemiology| Épidémiologie Clinical data| Données cliniques

In this retrospective study, the clinical characteristics, treatment and outcome data were collected and analyzed from 676 COVID-19 patients stratified into 140 non-survivors and 536 survivors. Found that the levels of Dimerized plasmin fragment D (D-dimer), C-reactive protein (CRP), lactate dehydrogenase (LDH), procalcitonin (PCT) were significantly higher in non-survivals on admission (non-survivors vs. survivors: D-Dimer ≥ 0.5 mg/L, 83.2% vs. 44.9%, P<0.01; CRP ≥10 mg/L, 50.4% vs. 6.0%, P<0.01; LDH ≥ 250 U/L, 73.8% vs. 20.1%, P<0.01; PCT ≥ 0.5 ng/ml, 27.7% vs. 1.8%, P<0.01). Moreover, dynamic tracking showed D-dimer kept increasing in non-survivors, while CRP, LDH and PCT remained relatively stable after admission. D-dimer has the highest C-index to predict in-hospital mortality, and patients with D-dimer levels ≥0.5 mg/L had a higher incidence of mortality (Hazard Ratio: 4.39, P<0.01).

[Problems in treating patients with chronic HCV infection due to the COVID-19 pandemic and during the lockdown phase in Germany]

Hüppe,  D,  Niederau, et al

Z Gastroenterol

Healthcare Response | Réponse des soins de santé

To analyze the influence of the pandemic on the healthcare of patients with chronic hepatitis C in Germany, we carried out a structured questionnaire among all centres participating in the German Hepatitis C-Registry (DHC-R). Diagnosis, therapy and monitoring of patients with chronic hepatitis C were impaired during the COVID-19 pandemic. Nevertheless, the majority of the centres did not see healthcare problems for these patients in the medium and long term. However, the fact that the diagnosis of liver decompensations with potential lethal consequences was delayed in a considerable number of patients causes major concern.

Modeling, control, and prediction of the spread of covid-19 using compartmental, logistic, and gauss models: A case study in Iraq and Egypt

Ibrahim,  MA,  Al-Najafi, et al

Processes

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie Public health interventions*| Interventions de sant&amp;eacute; publique

In this paper, we study and investigate the spread of the coronavirus disease 2019 (COVID-19) in Iraq and Egypt by using compartmental, logistic regression, and Gaussian models. We developed a generalized SEIR model for the spread of COVID-19, taking into account mildly and symptomatically infected individuals. The results provide discouraging forecasts for Iraq from 22 February to 8 October 2020 and for Egypt from 15 February to 8 October 2020. Our sensitivity analyses of the basic reproduction number allow us to conclude that the most effective way to prevent COVID-19 cases is by decreasing the transmission rate. The findings of this study could therefore assist Iraqi and Egyptian officials to intervene with the appropriate safety measures to cope with the increase of COVID-19 cases.

Persistent viral shedding despite seroconversion in a kidney transplant recipient with severe extrapulmonary COVID-19

Italiano,  J,  Bush, et al

BMJ Case Rep

Clinical data| Données cliniques

This report describes the duration of viral shedding and timing of seroconversion in a young adult RT recipient with COVID-19 who presented with severe diarrhoea and acute kidney injury requiring dialysis. She developed anti-SARS-CoV-2 IgG antibody after 5 weeks despite persistently shedding the virus in the nasopharynx until 6 weeks after symptom onset. Further studies are needed to determine if immunosuppressed patients have prolonged viral shedding and are still contagious despite seroconversion.

COVID-19: The regional impact of COVID-19 on the certification of vision impairment in Northern Ireland

Jackson,  J,  Silvestri, et al

Ophthalmic Physiol Opt

Healthcare Response | Réponse des soins de santé

In this paper we highlight the impact which the disruption of secondary care ophthalmic services, resulting from COVID-19, has had on Sight Impairment (SI) and Severe Sight Impairment (SSI) certification in Northern Ireland. It is inconceivable that COVID-19 has reduced the incidence of sight-threatening eye disease. We must therefore assume that a flood of newly presenting sight loss will present once the pandemic has passed. New presentations will include those who would normally have attended during the lockdown period, and patients who, had they accessed ophthalmic care at the appropriate time, would have been saved from severe levels of blindness. The implications of the predicted increase in demand for medical, social and low vision related services are huge.

The Resumption of Sports Medicine During the COVID-19 Post-Epidemic Period: Experiences from Wuhan, People's Republic of China

Jin,  S,  He, et al

J Bone Joint Surg Am

Healthcare Response | Réponse des soins de santé

Under the guidance of experts in our hospital, we studied and developed a series of measures suitable for enabling the resumption of sports medicine work while protecting both patients and medical workers. we present the measures undertaken as part of the safety protocol for the resumption of activities at our sports medicine center during the postepidemic period.

Multi-epitope vaccine against SARS-CoV-2 applying immunoinformatics and molecular dynamics simulation approaches

Jyotisha,  Singh,  S, et al

J Biomol Struct Dyn

Vaccine Research| Recherche sur les vaccins

In this study, immunoinformatics approach was employed to design a novel multi-epitope vaccine using RBD of SARS-CoV-2 spike protein. The potential B- and T-cell epitopes were selected from RBD sequence using various bioinformatics tools to design the vaccine construct. The in silico designed multi-epitope vaccine encompasses 146 amino acids with an adjuvant (human beta-defensin-2), which was further computationally evaluated for several parameters including antigenicity, allergenicity and stability. Subsequently, three-dimensional structure of vaccine construct was modelled and then docked with various toll-like receptors. Molecular dynamics (MD) study of docked TLR3-vaccine complex delineated it to be highly stable during simulation time and the stabilization of interaction was majorly contributed by electrostatic energy. The docked complex also showed low deformation and increased rigidity in motion of residues during dynamics. Altogether, our study suggests that the designed vaccine candidate containing RBD region could provide the specific humoral and cell-mediated immune responses against SARS-CoV-2.

Flow-Mediated Susceptibility and Molecular Response of Cerebral Endothelia to SARS-CoV-2 Infection

Kaneko,  N,  Satta, et al

Stroke

Coronavirology| Coronavirologie

We tested the hypothesis that viral S-protein binding to brain microvascular cells is dependent not only on molecular interaction with ACE2 but also requires a flow-mediated stimulus. We further sought to identify the brain-specific effect on endothelial cell gene expression triggered by viral S-protein binding. Brain endothelial cells are susceptible to direct SARS-CoV-2 infection through flow-dependent expression of ACE2. Viral S protein binding triggers a unique gene expression profile in brain endothelia that may explain the association of SARS-CoV-2 infection with cerebrovascular events.

Detection of Line Artifacts in Lung Ultrasound Images of COVID-19 Patients Via Nonconvex Regularization

Karakus,  O,  Anantrasirichai, et al

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

Clinical data| Données cliniques

In this article, we present a novel method for line artifacts quantification in lung ultrasound (LUS) images of COVID-19 patients. We employ a simple local maxima detection technique in the Radon transform domain, associated with known clinical definitions of line artifacts. Despite being nonconvex, the proposed technique is guaranteed to convergence through our proposed Cauchy proximal splitting (CPS) method, and accurately identifies both horizontal and vertical line artifacts in LUS images. To reduce the number of false and missed detection, our method includes a two-stage validation mechanism, which is performed in both Radon and image domains. We evaluate the performance of the proposed method in comparison to the current state-of-The-Art B-line identification method, and show a considerable performance gain with 87% correctly detected B-lines in LUS images of nine COVID-19 patients.

PMC7521892; Conventional PCR assisted single-component assembly of spherical nucleic acids for simple colorimetric detection of SARS-CoV-2

Karami,  A,  Hasani, et al

Sens Actuators B Chem

Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

Here, we report a simple colorimetric strategy derived from linker-based single-component assembly of gold nanoparticle-core spherical nucleic acids (AuNP-core SNAs) for visual detection of PCR products of SARS-CoV-2 ribonucleic acid (RNA) template. A palindromic linker is designed based on SARS-CoV-2 specific E gene to program the identical colloidal SNAs into large assemblies along with a distinct red-to-purple color change. The linker acts as a probe of SARS-CoV-2 RNA in conventional PCR reaction. In the presence of the correct template the palindromic linker, which is complementary to a short region within the target amplicon, is cleaved by 5'-exonuclease activity of deoxyribonucleic acid (DNA) polymerase. Cleavage of the palindromic linker during the amplification process inhibits the single-component assembly formation of SNAs. So, positive and negative viral samples produce simply red and purple colors in the post PCR colorimetric test, respectively. Evaluation of the samples obtained from cases with laboratory-confirmed SARS-CoV-2 infection revealed that our assay can rival with real-time PCR method in sensitivity.

Single cell transcriptomic re-analysis of immune cells in bronchoalveolar lavage fluids reveals the correlation of B cell characteristics and disease severity of patients with SARS-CoV-2 infection

Kim,  Chae Won,  Oh, et al

bioRxiv

Clinical data| Données cliniques Immunology | Immunologie

In this study, we reanalyzed scRNA-seq data of cells from bronchoalveolar lavage fluids of patients with COVID-19 with mild and severe symptoms, focusing on antibody-producing cells. In patients with severe disease, B cells seemed to be more activated and expressed more immunoglobulin genes compared with cells from patients with mild disease, and macrophages expressed higher levels of the TNF superfamily member B-cell activating factor but not of APRIL (a proliferation-inducing ligand). In addition, macrophages from patients with severe disease had increased pro-inflammatory features and pathways associated with Fc receptor-mediated signaling, compared with patients with mild disease. CCR2-positive plasma cells accumulated in patients with severe disease, probably because of increased CCL2 expression on macrophages from patients with severe disease. Together, these results support that different characteristics of B cells might affect the severity of COVID-19 infection.

Multisystem Inflammatory Syndrome in Children Related to COVID-19: the First Case in Korea

Kim,  H,  Shim, et al

J Korean Med Sci

Clinical data| Données cliniques

We report the first Korean child who met all the criteria of MIS-C with features of incomplete KD or KD shock syndrome.

An Easy-to-Use Machine Learning Model to Predict the Prognosis of Patients With COVID-19: Retrospective Cohort Study

Kim,  HJ,  Han, et al

J Med Internet Res

Clinical data| Données cliniques Healthcare Response | Réponse des soins de santé

The purpose of this study was to develop a machine learning model that predicts the need for intensive care for patients with COVID-19 using easily obtainable characteristics-baseline demographics, comorbidities, and symptoms. A total of 4787 patients were included in the analysis, of which 3294 were assigned to the derivation group and 1493 to the validation group. Among the 4787 patients, 460 (9.6%) patients needed intensive care. The AUC of the XGBoost model was 0.897 (95% CI 0.877-0.917) for the derivation group and 0.885 (95% CI 0.855-0.915) for the validation group. Both the AUCs were superior to those of CURB-65, which were 0.836 (95% CI 0.825-0.847) and 0.843 (95% CI 0.829-0.857), respectively.

The progression of sars coronavirus 2 (Sars-cov2): Mutation in the receptor binding domain of spike gene

Kim,  S,  Lee, et al

Immune Network

Coronavirology| Coronavirologie

We were interested in investigating the mutation region of S gene of SARS-CoV2 from Korean COVID-19 patients. New mutation sites were found in the critical receptor binding domain (RBD) of S gene, which is adjacent to the aforementioned D614G mutation residue. This specific sequence data demonstrated the active progression of SARS-CoV2 by mutations in the RBD of S gene. The sequence information of new mutations is critical to the development of recombinant SARS-CoV2 spike antigens, which may be required to improve and advance the strategy against a wide range of possible SARS-CoV2 mutations.

Psychological resistance of student youth to information stress in the COVID-19 pandemic

Kislyakov,  PA

Perspektivy Nauki i Obrazovania

Mental Health |
santé mentale
Public Health response| Interventions de santé publique

Article in Russian. The purpose of the study was to study the features of information behavior, psychological stability and ways to cope with information stress for Russian students during the COVID-19 pandemic. The cluster analysis allowed identifying four types of students’ information behavior during the COVID-19 pandemic: phobic (20%), cognitive (45%), nihilistic (20%) and circulating behavior (15%). To a greater extent, in order to cope with information stress during the COVID-19 pandemic, student youth use constructive coping strategies for planning (xave = 58.5±21.7), positive reassessment (xave = 51.9±19.3), self-control (xave = 47.5±17.8), characterized by a purposeful analysis of the situation and possible behavior options, including the determination of personal development directions. Besides, a significant part of students resort to the use of destructive coping strategies of avoidance, confrontation, distancing, caused by negative experiences, leading to the circulation of unofficial information about the pandemic. Half of the respondents need social support.

Exposure to COVID-19 pandemic stress: Associations with depression and anxiety in emerging adults in the United States

Kujawa,  A,  Green, et al

Depress Anxiety

Mental Health |
santé mentale

We developed the Pandemic Stress Questionnaire (PSQ) and tested its psychometric properties, characterized experiences in emerging adults, and examined associations with internalizing symptoms. Results supported the validity/reliability of PSQ total scores and indicated that stressful events were highly prevalent in May, particularly among younger, female, and Black emerging adults. Symptoms of depression and anxiety were high overall, but decreased at the follow-up assessment. Pandemic-related stress was moderately associated with both depression and anxiety at each assessment, but baseline stress did not predict change in symptoms when controlling for baseline symptoms.

Deletion in the C-terminal region of the envelope glycoprotein in some of the Indian SARS-CoV-2 genome

Kumar,  BK,  Rohit, et al

Virus Res

Coronavirology| Coronavirologie

The in silico analysis of 2086 whole genome sequences from India performed in this study provides the first observation on the extensive deletion of amino acid residues in the C-terminal region of the envelope glycoprotein in 34 Indian SARS-CoV-2 genomes. These amino acid deletions map to the homopentameric interface and PDZ binding motif (PBM) present in the C-terminal region of E protein as well as immediately after the reverse primer binding region as per Charité protocol in 26 of these genomes, hence, their detection through RT-qPCR may not be hampered and therefore E gene-based RT-qPCR would still detect these isolates. Eight genomes from the State of Odisha had deletion even in the primer binding site. It is possible that the deletions in the C-terminal region of E protein of these genomes are a result of adapting to a newer geographical area and host. The information on the clinical status was available only for 9 out of 34 cases and these were asymptomatic.

The SARS-CoV-2 and other human coronavirus spike proteins are fine-tuned towards temperature and proteases of the human airways

Laporte,  Manon,  Stevaert, et al

bioRxiv

Coronavirology| Coronavirologie

We here reveal features of the coronavirus spike (S) protein, which optimize the virus towards different parts of the respiratory tract. First, the SARS-CoV-2 spike (SARS-2-S) reached higher levels in pseudoparticles when produced at 33°C instead of 37°C. Even stronger preference for the upper airway temperature of 33°C was evident for the S protein of HCoV-229E, a common cold coronavirus. In contrast, the S proteins of SARS-CoV-1 and MERS-CoV favored 37°C, in accordance with their preference for the lower airways. Next, SARS-2-S proved efficiently activated by TMPRSS13, besides the previously identified host cell protease TMPRSS2, which may broaden the cell tropism of SARS-CoV-2. TMPRSS13 was found to be an effective spike activator for the virulent coronaviruses but not the common cold HCoV-229E virus. Activation by these proteases requires pre-cleavage of the SARS-2-S S1/S2 cleavage loop, and both its furin motif and extended loop length proved critical to achieve virus entry into airway epithelial cells. Finally, we show that the D614G mutation in SARS-2-S increases S protein stability and expression at 37°C, and promotes virus entry via cathepsin B/L activation. These spike properties might promote virus spread, potentially explaining why the G614 variant is currently predominating worldwide.

PMC7640922; Caution against precaution: A case report on silent hypoxia in COVID-19

Lari,  A,  Alherz, et al

Ann Med Surg (Lond)

Clinical data| Données cliniques

A 66 year old female with multiple comorbidities initially presented with a cough, fever and an oxygen saturation of 70% on room air in the absence of respiratory distress or altered mentation. She subsequently tested positive for COVID-19 and was admitted to the intensive care unit; received oxygen via high flow nasal cannula and continuous positive pressure mask. The patient remained in the intensive care unit for 40 days under close observation and exhibited multiple episodes of silent hypoxia on weaning oxygen.

Human mobility trends during the early stage of the COVID-19 pandemic in the United States

Lee,  M,  Zhao, et al

PLoS One

Public Health response| Interventions de santé publique

We aim to provide tangible evidence of the human mobility trends by comparing the day-by-day variations across the U.S. from January 2020 to early April 2020. The population staying home has increased in all states before the stay-at-home mandates implemented and becomes more stable after the order with a smaller range of fluctuation. The public had been taking active responses, voluntarily staying home more, to the in-state confirmed cases while the stay-at-home orders stabilize the variations. As the estimated teleworking rates also continue to incline throughout the study period, the teleworking trend can be another driving factor for the growing stay-at-home population. We confirm that there exists overall mobility heterogeneity between the income or population density groups. The study suggests that public mobility trends are in line with the government message urging to stay home.

Attitudes and precaution practices towards COVID-19 among pregnant women in Singapore: a cross-sectional survey

Lee,  RWK,  Loy, et al

BMC Pregnancy Childbirth

Public Health response| Interventions de santé publique

The aims of the study are to understand the attitudes and precaution practices of non-infected pregnant women towards the COVID-19 outbreak in Singapore. Social demographical factors including age > 36 years old, Malay ethnicity, employment in front line jobs and attendance at high-risk clinics are likely to influence the attitudes and precaution practices among pregnant women towards COVID-19 in Singapore. Knowledge gained from our cross-sectional online survey can better guide clinicians to communicate better with pregnant women.

Classification of Severe and Critical COVID-19 Using Deep Learning and Radiomics

Li,  C,  Dong, et al

IEEE J Biomed Health Inform

Epidemiology| Épidémiologie Clinical data| Données cliniques

We aimed to construct a model integrating information from radiomics and deep learning (DL) features to discriminate critical cases from severe cases of COVID-19 using computed tomography (CT) images. METHODS: We retrospectively enrolled 217 patients from three centers in China, including 82 patients with severe disease and 135 with critical disease. Patients were randomly divided into a training cohort (n=174) and a test cohort (n=43). We extracted 102 3-dimensional radiomic features from automatically segmented lung volume and selected the significant features. RESULTS: The merged model could distinguish critical patients with AUCs of 0.909 (95% confidence interval CI]: 0.8590.952) and 0.861 (95% CI: 0.7530.968) in the training and test cohorts, respectively. Stratified analysis indicated that our model was not affected by sex, age, or chronic disease. Moreover, the results of the merged model showed a strong correlation with patient outcomes.

Cardiac damage in patients with the severe type of coronavirus disease 2019 (COVID-19)

Li,  J,  Zhang, et al

BMC Cardiovasc Disord

Epidemiology| Épidémiologie Clinical data| Données cliniques

In this study, we aimed to explore the cardiac damage in patients with COVID-19.  METHODS: We collected data of 100 patients diagnosed as severe type of COVID-19 from February 8 to April 10, 2020, including demographics, illness history, physical examination, laboratory test, and treatment.  RESULTS:   Cardiac damage occurred in 25 patients. In the subgroups, hsTnI was significantly higher in elder patients and men. The prevalence of increased NTproBNP was significantly higher in men than in women, but was similar between the elder and young patients.

Network Pharmacology and bioinformatics analyses identify intersection genes of niacin and COVID-19 as potential therapeutic targets

Li,  R,  Li, et al

Brief Bioinform

Coronavirology| Coronavirologie Therapeutics| Thérapeutique

We used a series of network pharmacology-based and computational analyses to understand and characterize the binding capacity, biological functions, pharmacological targets and therapeutic mechanisms of niacin in CRC/COVID-19. MEASUREMENTS AND MAIN RESULTS: We revealed the clinical characteristics of CRC patients and COVID-19 patients, including predisposing genes, survival rate and prognosis. The analysis indicated that niacin could help in treating CRC/COVID-19 through cytoprotection, enhancement of immunologic functions, inhibition of inflammatory reactions and regulation of cellular microenvironment.

The relationship among organizational identity, psychological resilience and work engagement of the first-line nurses in the prevention and control of COVID-19 based on structural equation model

Lyu,  H,  Yao, et al

Risk Management and Healthcare Policy

Healthcare Response | Réponse des soins de santé

Material and Methods: Convenience sampling was applied to collect questionnaire samples from 216 nurses (from 12 cities in 6 provinces). General information questionnaires, organizational identity scale (OIQ), psychological resilience scale (CD-RISC), and Utrecht Work Engagement Scale (UWES) were used as tools for data collection. Results: Both organizational identification and psychological resilience had a positive impact on work engagement. Our results revealed that organizational identity could directly affect nursing. It can also indirectly affect nurses’ work engagement through the intermediary role of psychological resilience. In face of the COVID-19 epidemic, hospitals and nursing managers could improve the level of nurses’ job involvement by improving organizational identity, which in turn may have a positive effect on psychological resilience.

PMC7642808; Tocilizumab in the treatment of rapidly evolving COVID-19 pneumonia and multifaceted critical illness: A retrospective case series

Mady,  A,  Aletreby, et al

Ann Med Surg (Lond)

Epidemiology| Épidémiologie Clinical data| Données cliniques Therapeutics| Thérapeutique

A case-series of 61 patients admitted to our intensive care unit (ICU) between August 12 and September 12, 2020 with confirmed COVID-19 pneumonia and rapidly evolving ARF requiring oxygen support therapy and/or mechanical ventilation was retrospectively analyzed. We examined whether intravenous administration of tocilizumab, a monoclonal interleukin-6 receptor antibody, was associated with improved outcome. Outcome measures such as mortality on day-14, ICU length of stay, and rate of nosocomial acquired bacterial infections were also analyzed. Results: No serious adverse effects due to tocilizumab therapy were recorded. However, twelve patients (19.6%) developed nosocomial acquired infections. ICU length of stay was 13 days, and mortality on day-14 was 24.6%.  Tocilizumab did not affect the mortality of critically ill COVID-19 patients.

Reduction of acute myocardial infraction (AMI) hospital admissions in the region of Messinia in Greece during the Covid-19 lockdown period

Makaris,  E,  Kourek, et al

Hellenic J Cardiol

Healthcare Response | Réponse des soins de santé

The aim of the study was to assess whether there was reduction in AMI hospital admissions in the region of Messinia in Greece during the Covid-19 lockdown period. Admissions of patients with AMI reduced within the lockdown period of 2020 indicating significant decrease compared to the respective period of both 2018 and 2019. In-hospital and out of hospital mortality of patients with AMI among pre-lockdown, lockdown and post-lockdown period of 2020, as well as between 2019 and 2020 remained unchanged.

Study of resilience and loneliness in youth (18-25 years old) during the COVID-19 pandemic lockdown measures

Marchini,  S,  Zaurino, et al

J Community Psychol

Mental Health |
santé mentale

This study evaluated the risks and protective factors in mental health in 825 emerging adults aged from 18 to 25 years old in Belgium and in Italy. We conducted an online survey on the secured platform Research Electronic Data Capture. The primary outcomes were the resilience scale for adults (RSA) and the University of California Los Angeles Loneliness Scale. The secondary outcomes included mental health status in terms of professional help seeking, use of psychotropic drugs, admission to a psychiatric department before and during lockdown measures. Responders were divided into three groups following the mental healthcare needs (MHCN) before and after the lockdown measures. The group who experienced an increase in MHCN represented almost 5% of the assessed youth. Statistically significant differences were found in means of RSA total score and RSA perception of self.

Individuating Possibly Repurposable Drugs and Drug Targets for COVID-19 Treatment through Hypothesis-Driven Systems Medicine Using CoVex

Matschinske,  J,  Salgado-Albarrán, et al

Assay Drug Dev Technol

Coronavirology| Coronavirologie Therapeutics| Thérapeutique

In this article, we showcase how to individuate drug targets and potentially repurposable drugs in silico using CoVex a recently presented systems medicine platform for COVID-19 drug repurposing. Our analysis reveals GLA, PLAT, and GGCX as potential drug targets, and urokinase, argatroban, dabigatran etexilate, betrixaban, ximelagatran and anisindione as potentially repurposable drugs.

A modelling study highlights the power of detecting and isolating asymptomatic or very mildly affected individuals for COVID-19 epidemic management

Mayorga,  Lia,  Samartino, et al

Research Square prepub

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie Public health interventions*| Interventions de sant&amp;eacute; publique Healthcare Response | Réponse des soins de santé

Methods: We present a compartmental model for the disease where symptomatic and asymptomatic individuals move separately.  Overall, the simulations we carried out were notably more effective when mitigation measures were not relaxed in between the suppressive actions. Since asymptomatics or very mildly affected patients are the vast majority, we studied the impact of detecting and isolating them. The removal of asymptomatics from the infectious pool remarkably lowered the effective reproduction number, healthcare burden and overall fatality. Furthermore, different suppression triggers regarding ICU occupancy were attempted. The best scenario was found to be the combination of ICU occupancy triggers (on: 50%, off: 30%) with the detection and isolation of asymptomatic individuals.

Monitoring the psychological, social, and economic impact of the COVID-19 pandemic in the population: Context, design and conduct of the longitudinal COVID-19 psychological research consortium (C19PRC) study

McBride,  O,  Murphy, et al

Int J Methods Psychiatr Res

Mental Health |
santé mentale
Public Health response| Interventions de santé publique

METHODS: A longitudinal, internet panel survey was designed to assess: (1) COVID-19 related knowledge, attitudes, and behaviors; (2) the occurrence of common mental health disorders as well as the role of (3) psychological factors and (4) social and political attitudes, in influencing the public's response to the pandemic. RESULTS: Two thousand and twenty five adults were recruited at baseline, and 1406 were followed-up one-month later (69.4% retention rate). The baseline sample was representative of the UK population in relation to economic activity, ethnicity, and household composition. Attrition was predicted by key socio-demographic characteristics, and an inverse probability weighting procedure was employed to ensure the follow-up sample was representative of the baseline sample.

Long term outcomes of critically ill COVID-19 pneumonia patients: early learning

McCue,  C,  Cowan, et al

Intensive Care Med

Long-Term Sequelae |
séquelles à long terme

Patients are routinely invited to our multi-disciplinary ICU follow-up clinic between 12–16 weeks post discharge. From March 14th, 2020 until April 28th, 2020, 51 patients required invasive mechanical ventilation for COVID-19 pneumonia in our ICU. Complete records of 43 patients were available for review. The median HUS was 0.752 . New disability including breathlessness were reported as impacting on employability; a small number of patients described they were unable to return to work due to COVID-19 employment restrictions. Fourteen (67%) patients complained of new pain; 29% of pain was classified as severe or extreme. This cohort had a significant burden of acute illness requiring prolonged mechanical ventilation and high rates of neuromuscular blockade.

PMC7607230; Seroprevalence of SARS-Cov-2 in the setting of a non-dedicated COVID-19 hospital in a low CoV-2 incidence area: Implications for surgery

Medas,  F,  Cappellacci, et al

Ann Med Surg (Lond)

Epidemiology| Épidémiologie Immunology | Immunologie

The aim of this study was to assess the seroprevalence of SARS-Cov-2 in the setting of a non-dedicated COVID-19 hospital in a low CoV-2 incidence area. Among 86 patients included in the study, we found 2 (2.3%) patients positive for both SARS-CoV-2 specific IgM and IgG, 2 (2.3%) for only SARS-CoV-2 specific IgM, and 1 for only SARS-CoV-2 specific IgG. Thus, seroprevalence for SARS-CoV-2 was 5.8%; nasopharyngeal swab was negative in all the cases.

Cardiovascular view of intermediate and high-risk COVID-19 patients: single-centre experience with low mortality and intensive care hospitalisation rates

Medetalibeyoglu,  A,  Emet, et al

Cardiovasc J Afr

Epidemiology| Épidémiologie Clinical data| Données cliniques

The purpose of this article was to report the low rates of intensive care unit admission and mortality in intermediate- and high-risk COVID-19 patients, and to share our clinical approach with other colleagues. METHODS: Patients admitted to the emergency department in the Department of Internal Medicine, Faculty of Medicine, Istanbul University, with laboratory or clinically and radiologically confirmed COVID-19 were included in this retrospective cross-sectional study, which was conducted from 11 March to 10 April 2020. RESULTS: Mortality and intensive care unit admission rates were statistically significantly higher in patients with cardiac injury than in those without. There was a positive correlation between levels of high-sensitivity TNT and fibrinogen, D-dimer, ferritin, procalcitonin and C-reactive protein.

Venous thromboembolism and COVID-19: a single center experience from an academic tertiary referral hospital of Northern Italy

Melazzini,  F,  Colaneri, et al

Intern Emerg Med

Epidemiology| Épidémiologie Clinical data| Données cliniques

we conducted a retrospective, observational study on 259 consecutive COVID-19 patients admitted to an academic tertiary referral hospital in Northern Italy between March 19th and April 6th, 2020. Records of COVID-19 patients with a definite VTE event were reviewed for demographic information, co-morbidities, risk factors for VTE, laboratory tests, and anticoagulation treatment. Twenty-five cases among 259 COVID-19 patients developed VTE (9.6%), all of them having a Padua score > 4, although being under standard anticoagulation prophylaxis since hospital admission.  In the VTE subcohort, we found a significant positive correlation between platelet count (PLT) and either C reactive protein (CRP) or lactate dehydrogenase (LDH), while a significant inverse correlation was observed between PLT and mean platelet volume.

Impact of lockdown on COVID-19 prevalence and mortality during 2020 pandemic: observational analysis of 27 countries

Meo,  SA,  Abukhalaf, et al

Eur J Med Res

Epidemiology| Épidémiologie Public health interventions*| Interventions de sant&amp;eacute; publique

This study aimed to assess the impact of 15 days before, 15 days during, and 15 days after the lockdown on the trends in the prevalence and mortality in 27 countries during COVID-19 pandemic. METHODS: Twenty-seven countries were randomly selected from the different continents. The information on the trends in the prevalence and mortality due to COVID-19 pandemic in 27 countries was obtained from World Health Organization and lockdown data were obtained from concerned countries and their ministries. RESULTS: The findings showed that 15 days after the lockdown there was a trend toward a decline, but no significant decline in the mean prevalence and mean mortality rate due to the COVID-19 pandemic compared to 15 days before, and 15 days during the lockdown in 27 countries. The mean growth factor for number of cases was 1.18 and for mortality rate was 1.16.

PMC7577267; A comparative study looking at trauma and orthopaedic operating efficiency in the COVID-19 era

Mercer,  ST,  Agarwal, et al

Perioper Care Oper Room Manag

Healthcare Response | Réponse des soins de santé

METHODS: All trauma and orthopaedic emergency surgery were analysed for May 2019 and May 2020. RESULTS: A total of 222 patients underwent emergency orthopaedic surgery in May 2019 and 161 in May 2020. A statistically significant increase in all timings was demonstrated in 2020 apart from anaesthetic time which demonstrated a significant decrease.

Assessment of mortality in correlation with comorbidities in COVID-19 patients of Telangana state

Mesipogu,  Rajarao,  Adeula, et al

Research Square prepub

Epidemiology| Épidémiologie Clinical data| Données cliniques

The aim of the study is to describe the clinical and epidemiological characteristics of 201 deceased from Telangana. We retrospectively collected all consecutive death cases with laboratory‐confirmed COVID‐19 infection admitted from March to mid-June at Gandhi Hospital the nodal centre designated for COVID-19 in Telangana.  Results A total of 15394 patients with confirmed COVID‐19 test were admitted at Isolation wards between March 2020 and June 2020 and 253 death cases were reported till the submission of this paper. The mean age of death is 57.0 ys in our study, 40.7% (88) deaths were above 60 years and 71.4% (147) were male. Several comorbid conditions existed with COVID-19 death cases among which hypertension being the most common comorbidity (60.1%). Lymphopenia was observed in 46% cases while lymphopenia with comorbidity was recorded in 63% cases.

Determining extent of COVID-19 pneumonia on CT based on biological variables

Mickael,  T,  Ahmed, et al

Respir Med

Clinical data| Données cliniques

The objective was to determine for the biological variables correlating with disease severity the cut-off values showing the best performance to predict the parenchymal extent of the pneumonia. Lactic Acid Dehydrogenase (LDH) showed the strongest correlation with the extent of Covid-19 pneumonia on CT.

Effects of the COVID-19 Pandemic on Domestic Violence in Los Angeles

Miller,  AmaliaR,  Segal, et al

SSRN- Lancet prepublication

Public Health response| Interventions de santé publique

Authors use high-frequency, real-time data from Los Angeles on 911 calls, crime incidents, arrests, and calls to a Domestic Violence (DV) hotline to study the effects of COVID-19 shutdowns on DV. Results highlight the heterogeneous effects of the pandemic across DV measures and caution against relying on a single data type or source.

EXCESS MORTALITY FROM COVID-19. WEEKLY EXCESS DEATH RATES BY AGE AND SEX FOR SWEDEN AND ITS MOST AFFECTED REGION

Modig,  K,  Ahlbom, et al

Eur J Public Health

Epidemiology| Épidémiologie

Authors estimate age- and sex-specific mortality rates due to COVID-19 in Sweden. The excess mortality has been high in older ages during the pandemic, but it remains to be answered if this is because of age itself being a prognostic factor or a proxy for comorbidity.

COVID-19 unfolding filariasis: The first case of SARS-CoV-2 and Wuchereria bancrofti coinfection

Mohamed,  MFH,  Mohamed, et al

PLoS Negl Trop Dis

Clinical data| Données cliniques

Authors report the first case of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection, unveiling the diagnosis of asymptomatic filariasis. It is prudent to keep a broad differential diagnosis when faced with SARS-CoV-2-infected patients.

Towards Targeting the Disordered SARS-CoV-2 Nsp2 C-terminal Region: Partial Structure and Dampened Mobility Revealed by NMR Spectroscopy

Mompeán,  Miguel,  Treviño, et al

bioRxiv

Coronavirology| Coronavirologie

To enable inhibitor screening and to uncover conformational preferences and dynamics, authors have expressed and purified the 13C,15N-labeled C-terminal region of Nsp2. The chemical shift data confirm that this region is chiefly disordered, but contains two five-residue segments that adopt a small population of β-strand structure.

Non-severe immunosuppression might be associated with a lower risk of moderate-severe acute respiratory distress syndrome in COVID-19: a pilot study

Monreal,  E,  de la Maza, et al

J Med Virol

Epidemiology| Épidémiologie Clinical data| Données cliniques

Authors discuss the role of immunosuppression among Coronavirus disease 2019 (COVID-19) patients, Non-severe immunosuppression was associated with a lower risk of moderate-severe acute respiratory distress syndrome (ARDS), especially among  autoimmune diseases (AD).

Pregnant Women’s Well-being and Worry During the COVID-19 Pandemic: A Comparative Study

Mortazavi,  Forough,  Mehrabadi, et al

Research Square prepub

Mental Health |
santé mentale

Authors investigated worry and well-being and associated factors among pregnant women during the COVID-19 epidemic. The percentage of women experiencing a low well-being state was relatively high.

COVID-19 and rheumatic musculoskeletal disease patients: infection rates, attitudes and medication adherence in an Irish population

Murray,  K,  Quinn, et al

Rheumatology (Oxford)

Epidemiology| Épidémiologie

The aim of this study was to establish, amongst Irish rheumatic musculoskeletal disease (RMD) patients, rates of COVID-19 symptoms and positive tests, DMARD adherence and attitudes to virtual clinics. The rate of COVID-19 positivity in RMD patients was similar to the general population.

SARS-CoV-2 epitope mapping on microarrays highlights strong immune-response to N protein region

Musicò,  Angelo,  Frigerio, et al

bioRxiv

Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

Authors report a workflow for SARS-CoV-2 epitope discovery on peptide microarrays.  A summary study testing 50 serum samples highlighted an epitope of the N protein (region 155-171) providing 92% sensitivity and 100% specificity of IgG detection in Covid-19 samples thus being a promising candidate for rapid implementation in serological tests.

Curse of Small Sample Size in Forecasting of the Active Cases in COVID-19 Outbreak

Nakıp,  Mert,  Çopur, et al

arXiv

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie

This paper gives an explanation for the failure of machine learning models in this particular forecasting problem. Results show that the accurate forecasting of the active cases with high generalization ability is possible up to 3 days only because of the small sample size of COVID-19 data.

Colorimetric reverse transcription loop-mediated isothermal amplification (RT-LAMP) as a visual diagnostic platform for the detection of the emerging coronavirus SARS-CoV-2

Nawattanapaiboon,  K,  Pasomsub, et al

Analyst

Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

Authors aimed to develop a visual diagnostic platform for SARS-CoV-2 based on colorimetric RT-LAMP with levels of sensitivity and specificity comparable to that of commercial qRT-PCR assays. Results indicate that the developed colorimetric RT-LAMP provides a simple, sensitive and reliable approach for the detection of SARS-CoV-2 in clinical samples, implying its beneficial use as a diagnostic platform for COVID-19 screening.

Acquired COVID-19 infection in the Emergency Department after its reorganization during the pandemic: single center prospective study

Nazerian,  P,  Lumini, et al

Intern Emerg Med

Transmission Healthcare Response | Réponse des soins de santé

In this letter to the editor authors describe a study conducted to evaluate the burden of ED-acquired COVID-19 (EDAC) in patients discharged from a reorganized Italian ED during COVID-19 outbreak. The use of protective equipment for both patients and healthcare workers and rapid admission of highly suspected COVID-19 patients needing hospitalization resulted in no EDAC among patients discharged from ED after reorganization.

Google Trends Analysis of COVID-19

Nguyen,  Hoang Long,  Pan, et al

arXiv

Public Health response| Interventions de santé publique

Authors aim to investigate the relation between Google search trends and the spreading of the novel coronavirus (COVID-19) over countries worldwide, to predict the number of cases. Results show that Google search trends are highly associated with the number of reported confirmed cases, where the Deep Learning approach outperforms other forecasting techniques.

Impact of COVID-19 Lockdown Measures on Spanish People with Chronic Pain: An Online Study Survey

Nieto,  R,  Pardo, et al

J Clin Med

Public Health response| Interventions de santé publique

In this cross-sectional study, an online survey of relevant chronic pain domains, coping strategies, triggers and potential related variables was answered by 502 Spanish individuals with chronic pain. Results highlight the negative effects of lockdown on patients with chronic pain as well as the need to make available cost-effective and remotely accessible healthcare resources for counteracting them.

Mortality risk assessment in Spain and Italy, insights of the HOPE COVID-19 registry

Núñez-Gil,  IJ,  Fernández-Pérez, et al

Intern Emerg Med

Epidemiology| Épidémiologie Clinical data| Données cliniques

The primary end-point of this work was all-cause mortality aiming to produce a mortality risk score calculator. COVID-19 produces important mortality, mostly in patients with comorbidities with respiratory symptoms.

Factors Associated with COVID-Related Mortality: the Case of Texas

Ojinnaka,  CO,  Adepoju, et al

J Racial Ethn Health Disparities

Epidemiology| Épidémiologie

The objective of this study was to explore the relationship between county-level race/ethnic composition and COVID-19 mortality in the state of Texas. Counties with higher rates of minorities, specifically Hispanics and African Americans, have a higher COVID-19 fatality burden.

General anxiety in the dental staff and hemodynamic changes during endodontists' workday in the COVID-19 pandemic: A prospective longitudinal study

Olivieri,  JG,  de España, et al

J Endod

Mental Health |
santé mentale

OBJECTIVES: To assess general anxiety levels in endodontists and dental assistants related to different conditions during the pandemic and lockdown, and to evaluate hemodynamic changes in endodontists' heart rate, blood pressure, and blood oxygenation during their workday. METHODS: Anxiety levels in endodontists and dental assistants were recorded weekly during the state of alarm declared due to the COVID-19 pandemic. Hemodynamic parameters were monitored using a sphygmomanometer for HR and blood pressure, and a pulse oximeter for SpO(2). Measurements were taken before and after each root canal treatment, as well as on arrival at the clinic and at the end of the working day. Rest data, recorded every Saturday, served as a control. Data analysis was performed using X(2) and paired T-Tests, Mann-Whitney, and ANOVA tests (p < 0.05). RESULTS: General anxiety decreased over the weeks, with significant differences between weeks one and four (p < 0.05). Endodontists perceived higher anxiety levels of anxiety during anesthesia inoculation and dental assistants during the dental unit's disinfection and equipment material (p < 0.05). There was a significant increase in the cardiovascular response in all endodontists in the clinic registrations compared with rest data (p < 0.05). Values were higher in the strict confinement period and significant for HR when arriving at the clinic (p < 0.05). CONCLUSIONS: Levels of general anxiety were higher during the first weeks. The chief perceived factors related to anxiety in endodontists and dental assistants were the risk of contagion and protection measures. Higher HR and blood pressure levels were registered during the workday, especially when arriving at the clinic.

COVID-19 Hospitalization in Adults with Type 1 Diabetes: Results from the T1D Exchange Multi-Center Surveillance Study

O'Malley,  G,  Ebekozien, et al

J Clin Endocrinol Metab

Clinical data| Données cliniques

The objective of this study was to analyze characteristics of adults with type 1 diabetes for associations with COVID-19 hospitalization. Baseline glycemic control and access to care are important modifiable risk factors which need to be addressed to optimize care of people with type 1 diabetes during the worldwide COVID-19 pandemic.

Phase 1 Assessment of the Safety and Immunogenicity of an mRNA- Lipid Nanoparticle Vaccine Candidate Against SARS-CoV-2 in Human Volunteers

Oostvogels,  Lidia,  Kremsner, et al

medRxiv

Coronavirology| Coronavirologie

Authors have applied an mRNA-based technology platform, RNActive®, to develop CVnCoV which contains sequence optimized mRNA coding for a stabilized form of S protein encapsulated in lipid nanoparticles (LNP). Preliminary results in the subset of subjects who were enrolled with known SARS-CoV-2 seropositivity at baseline show that CVnCoV is also safe and well tolerated in this population, and is able to boost the pre-existing immune response even at low dose levels.

Incidence of acute coronary syndrome during national lock-down: insights from nationwide data during the coronavirus disease 2019 (COVID-19) pandemic

Østergaard,  L,  Butt, et al

Am Heart J

Healthcare Response | Réponse des soins de santé

We aimed to examine the incidence of  acute coronary syndrome (ACS), after national lock-down by comparing the incidence to a prior period (2017-2019).  Results find that during the COVID-19 pandemic with an established national lock-down we identified a significant decline around 30% in the incidence of ACS admissions. Along with the reopening of society, ACS admissions were stabilized at levels equal to previous years.

Chest CT in the emergency department for suspected COVID-19 pneumonia

Palmisano,  A,  Scotti, et al

Radiol Med

Clinical data| Données cliniques Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

Here we report the diagnostic role of CT in two emergency departments (EDs) in Lombardy, epicenter of Italian outbreak.Most of cases (96/142, 68%) were classified as “highly likely” COVID-19 pneumonia. Ten (7%) and seven (5%) patients were classified as “likely” and “unlikely” COVID-19 pneumonia, respectively. In 21 (15%) patients a differential diagnosis was provided, including typical pneumonia, pulmonary edema, neoplasia, and pulmonary embolism. CT was negative in 8/142 (6%) patients. CT performance was good with 76% specificity, 99% sensitivity, 90% positive predictive value and 97% negative predictive value.

Coronavirus Disease 2019 (COVID-19): A Modeling Study of Factors Driving Variation in Case Fatality Rate by Country

Pan,  J,  St Pierre, et al

Int J Environ Res Public Health

Epidemiology| Épidémiologie

This study aims to identify factors that may explain the variation in case fatality rate (CFR) across countries. Across the 39 countries under consideration, our model shows COVID-19 case fatality rate was best predicted by time to implementation of social distancing measures, hospital beds per 1000 individuals, percent population over 70 years, CT scanners per 1 million individuals, and (in countries with high population density) smoking prevalence.

Neutrophil extracellular traps induce the epithelial-mesenchymal transition: implications in post-COVID-19 fibrosis

Pandolfi,  Laura,  Bozzini, et al

bioRxiv

Clinical data| Données cliniques Immunology | Immunologie

The aim of this in vitro study is to assess the capacity of neutrophil extracellular traps (NETs) to drive epithelial-mesenchymal transition (EMT) of lung epithelial cells and to analyze the involvement of NETs in COVID-19.  Co-culturing A549 at air-liquid interface with alveolar macrophages, neutrophils and SARS-CoV2, we demonstrated a significant induction of the EMT in lung epithelial cell lines (A549) together with high concentration of NETs, IL8 and IL1β, best-known inducers of NETosis. Lung tissues of COVID-19 deceased patients showed that epithelial cells are characterized by increased mesenchymal markers. These results show for the first time that NETosis plays a major role in triggering lung fibrosis in COVID-19 patients

Incidence rates of hospitalization and death from COVID-19 in patients with psoriasis receiving biological treatment: a Northern Italy experience

Paolo,  G,  Stefano, et al

J Allergy Clin Immunol

Epidemiology| Épidémiologie Clinical data| Données cliniques

The objective of this retrospective multicentre study was to investigate  the incidence of hospitalization and death for COVID-19 in a large sample of patients with plaque psoriasis receiving biologic therapies compared with the general population in Italy. Our data did not show any adverse impact of biologics on COVID-19 outcome in psoriasis patients. We would not advise biologic discontinuation in patients on treatment since more than 6 months and not infected with SARS-CoV-2 to prevent hospitalization and death from COVID-19.

Non applicability of validated predictive models for intensive care admission and death of COVID-19 patients in a secondary care hospital in Belgium

Parisi,  Nicolas,  Mili, et al

medRxiv

Clinical data| Données cliniques Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

This monocentric retrospective cohort study sought to set up simple and reliable predictive scores for intensive care admissions and deaths in COVID-19 patients and compare against a benchmark value (Liang score). Our results suggest that Liang score may not provide reliable guidance for ICU admission and death. Moreover, the performance of this approach is clearly outperformed by models based on simple markers. For example, a logistic regression considering only the LDH yields to similar sensitivity and greater specificity. Finally, all models considered in this study lead to levels of specificity under or equal to 50%.

Assessment of knowledge gaps and perceptions about COVID-19 among health care workers and general public-national cross-sectional study

Paul,  G,  Sharma, et al

Journal of Anaesthesiology Clinical Pharmacology

Healthcare Response | Réponse des soins de santé

We aimed to evaluate knowledge and perceptions about COVID-19 among the health care workers (HCWs) as well as general public participants (GPPs).  The 1,026 responses comprised of 558 HCWs (54.4%) and 468 GPPs (45.6%). The most reliable source of information was TV news for 43% GPPs, whereas it was HCWs/Local health authorities for 36.8% HCWs. HCWs had sufficient knowledge regarding COVID-19, while it was relatively low among GPPs (average correct response 65% and 53%, respectively). Intra-group analysis with respect to age, sex, qualification, and socioeconomic status showed that knowledge about mode of transmission by airborne aerosols was significantly low with respect to qualification among GPPs while younger age group (<40 years) HCWs had significantly more knowledge about mode of transmission and asymptomatic carriers. Paranoia of contracting the infection was significantly higher in GPPs with upper and middle socioeconomic status and younger HCWs.

Optimal test-assisted quarantine strategies for COVID-19

Peng,  Bo,  Zhou, et al

medRxiv

Modelling/ prediction| Modélisation/prédiction Public health interventions*| Interventions de sant&amp;eacute; publique

We performed extensive simulations to evaluate the performance of quarantine strategies with one or more tests administered during quarantine in order to assess a test result based quarantine period. Sensitivity analyses were performed to evaluate the impact of perturbations in model assumptions on the determination of optimal strategies. We found that SARS-CoV-2 testing can effectively reduce the length of quarantine without compromising personal or public safety. Whereas a single RT-PCR test performed before the end of quarantine can reduce the duration of quarantine to 10 days, two tests can further reduce the duration to 8-days and three tests with a highly sensitive RT-PCR test can justify a 6-day quarantine. More strategic testing schedules and one more day of quarantine are needed if tests are administrated with a less sensitive but more cost-effective antigen test.

Risk factors for redetectable positivity in recovered COVID-19 children

Peng,  D,  Zhang, et al

Pediatr Pulmonol

Epidemiology| Épidémiologie Clinical data| Données cliniques Immunology | Immunologie

The objective of this retrospective study was to identify the risk factors for redetectable positivity (RP), and to provide a basis for prevention and control of coronavirus disease‐2019 (COVID‐19) in children. Results find that family cluster infection, higher WBC count, and longer PT are the early risk factors for RP in recovered COVID‐19 children. The dynamic changes in number and ratio of CD4+ and CD8+ T lymphocytes may be involved in prolonged SARS‐CoV‐2 clearance.

Changes of Humoral Immunity Response in SARS-CoV-2 Convalescent Patients over 8 months

Peng,  Pai,  Hu, et al

medRxiv

Clinical data| Données cliniques Immunology | Immunologie

Here, we reported changes of antibodies against SARS-CoV-2 in convalescent patients over 8 months. Antibodies of all 20 participants targeting SARS-CoV-2 spike receptor binding-domain (RBD) had decreased from a mean OD450 value 1.78 to 0.38 over 8 months. The neutralizing antibody (NAb) titers decreased from the mean ID50 value 836 to 170. The NAb titers were significantly correlated with IgG level during 8 months (P<0.001). Furthermore, while RBD-specific IgG existence of 25% (5/20) convalescent plasma was undetectable, the NAb titers of 15% (3/20) convalescent plasma decreased below the threshold. In addition, compared to wild-type SARS-CoV-2 (S-D614), lower titers of neutralizing antibodies against its G614 variant were shown at 8 months after symptom onset.

PMC7642858; Clinical features of critically ill patients infected with SARS-CoV-2 outside Wuhan with and without diabetes

Peng,  X,  Chen, et al

Int J Diabetes Dev Ctries

Epidemiology| Épidémiologie Clinical data| Données cliniques

Here, we investigated the clinical features of critically ill SARS-CoV-2 patients with and without diabetes and identified risk factors for death of these patients. Results indicate that critically ill COVID patients with Type 2 diabetes had more severe damages of the lymphocytes, islet cells, and heart function, and gastrointestinal symptoms, lymphopenia, and increased FBG may be early predictors for poor prognosis.

Comparison of two different frailty measurements and risk of hospitalisation or death from COVID-19: findings from UK Biobank

Petermann-Rocha,  F,  Hanlon, et al

BMC Med

Epidemiology| Épidémiologie Clinical data| Données cliniques

This study aimed to compare the association between frailty and severe COVID-19 infection in UK Biobank (n=383,845) using two frailty classifications: the frailty phenotype and the frailty index. Of UK Biobank participants included, 802 were admitted to hospital with and/or died from COVID19 (323 deaths and 479 hospitalisations). After analyses were adjusted for sociodemographic and lifestyle factors, a higher risk of COVID-19 was observed for pre-frail (risk ratio (RR) 1.47 [95% CI 1.26; 1.71]) and frail (RR 2.66 [95% CI 2.04; 3.47]) individuals compared to those classified as robust using the frailty phenotype. Similar results were observed when the frailty index was used (RR mildly frail 1.46 [95% CI 1.26; 1.71] and RR moderate/severe frailty 2.43 [95% CI 1.91; 3.10]).

Identification of a unique TCR repertoire, consistent with a superantigen selection process in Children with Multi-system Inflammatory Syndrome

Porritt,  RebeccaA,  Paschold, et al

bioRxiv

Clinical data| Données cliniques Immunology | Immunologie

Here, we characterized the TCR repertoire of Multisystem Inflammatory Syndrome in Children (MIS-C) patients and found a profound expansion of TCR Beta Variable gene (TRBV)11-2. Furthermore, TRBV11-2 skewing was remarkably correlated with MIS-C severity and serum cytokine levels. Further analysis of TRBJ gene usage and CDR3 length distribution of MIS-C expanding TRBV11-2 clones revealed extensive junctional diversity, indicating a superantigen-mediated selection process for TRBV expansion. In silico modelling indicates that polyacidic residues in TCR Vβ11-2 engage in strong interactions with the superantigen-like motif of SARS-CoV-2 spike glycoprotein. Overall, our data indicate that the immune response in MIS-C is consistent with superantigenic activation.

Prevalence of IgG against SARS-CoV-2 and evaluation of a rapid MEDsan IgG test in children seeking medical care

Posfay-Barbe,  K,  Andrey, et al

Clin Infect Dis

Epidemiology| Épidémiologie Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

In a sample of 208 children seeking medical care, seropositivity rate of anti-SARS-CoV-2 IgG antibodies was 8.7%, suggesting a similar infection rate to that observed in adults, but >100-fold the incidence of RT-PCR-confirmed pediatric cases. Compared to the gold-standard combined ELISA+immunofluorescence, the MEDsan IgG rapid diagnostic test performed accurately.

Chest X-ray Image Phase Features for Improved Diagnosis of COVID-19 Using Convolutional Neural Network

Qi,  Xiao,  Brown, et al

arXiv

Clinical data| Données cliniques Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

In this study, we design a novel multi-feature convolutional neural network (CNN) architecture for multi-class improved classification of COVID-19 from CXR images. CXR images are enhanced using a local phase-based image enhancement method. The enhanced images, together with the original CXR data, are used as an input to our proposed CNN architecture. Using ablation studies, we show the effectiveness of the enhanced images in improving the diagnostic accuracy. We provide quantitative evaluation on two datasets and qualitative results for visual inspection. Quantitative evaluation is performed on data consisting of 8,851 normal (healthy), 6,045 pneumonia, and 3,323 Covid-19 CXR scans. In Dataset-1, our model achieves 95.57% average accuracy for a three classes classification, 99% precision, recall, and F1-scores for COVID-19 cases. For Dataset-2, we have obtained 94.44\% average accuracy, and 95% precision, recall, and F1-scores for detection of COVID-19.

SARS- CoV-2 infection presented as acute exacerbation of bronchial Asthma

Raina,  P,  Baidya, et al

Journal of Anaesthesiology Clinical Pharmacology

Clinical data| Données cliniques

The varied presentation of acute respiratory illness from SARS-CoV-2 poses a diagnostic challenge to the physician. The classic presentation of fever, cough and shortness of breath is often not reported in a number of patients. We report a case of acute respiratory illness in a middle-aged asthmatic man who presented with acute severe bronchospasm.

Impact of a Stay-at-Home Order on Stroke Admission, Subtype, and Metrics during the COVID-19 Pandemic

Rameez,  F,  McCarthy, et al

Cerebrovasc Dis Extra

Healthcare Response | Réponse des soins de santé

Our study aims to evaluate the impact of a stay-at-home order on stroke metrics during the 2019-novel coronavirus (COVID-19) pandemic in West Michigan, USA. Our study demonstrated a reduction in cases of acute ischemic stroke (AIS), although this did not reach statistical significance. However, there was an increase in hemorrhagic stroke (7.5% controls vs. 19.2% study group). The age of stroke patients was significantly younger during the period of the stay-at-home order compared to the control group. We identified a significant overall delay of ED arrivals from LKW in the study group. Additionally, an increased number of AIS patients with LVO in the study group (34.8%) was found compared to the control group (17.5%). A significantly increased number of patients received MT in the study group.

Optimization and Evaluation of Propolis liposomes as a promising therapeutic approach for COVID-19

Refaat,  H,  Mady, et al

Int J Pharm

Coronavirology| Coronavirologie Therapeutics| Thérapeutique

The present docking study aimed to develop an optimized liposomal formulation for enhancing the anti-viral activity of propolis against COVID-19. Response surface methodology and modified injection method were implemented to maximize the entrapment efficiency and release of the liposomal formulation. Docking studies revealed that Rutin and Caffeic acid phenethyl ester showed the highest affinity to both targets. Results showed a significant inhibitory effect of the optimized liposomal formula of Propolis against COVID-3CL protease (IC50 = 1.183 ± 0.06) compared with the Egyptian propolis extract (IC50 = 2.452 ± 0.11), P < 0.001. Interestingly, the inhibition of viral replication of COVID-19 determined by RT_PCR has been significantly enhanced via encapsulation of propolis extract within the liposomal formulation (P < 0.0001) and was comparable to the viral inhibitory effect of the potent antiviral (remdesivir).

COVID-19 Patient Detection from Telephone Quality Speech Data

Ritwik,  Kotra Venkata Sai,  Kalluri, et al

arXiv

Modelling/ prediction| Modélisation/prédiction Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

In this paper, we try to investigate the presence of cues about the COVID-19 disease in the speech data. We use an approach that is similar to speaker recognition. Each sentence is represented as super vectors of short term Mel filter bank features for each phoneme. These features are used to learn a two-class classifier to separate the COVID-19 speech from normal. Experiments on a small dataset collected from YouTube videos show that an SVM classifier on this dataset is able to achieve an accuracy of 88.6% and an F1-Score of 92.7%. Further investigation reveals that some phone classes, such as nasals, stops, and mid vowels can distinguish the two classes better than the others.

Human coronaviruses disassemble processing bodies

Robinson,  Carolyn-Ann,  Kleer, et al

bioRxiv

Coronavirology| Coronavirologie

To contribute to an enhanced understanding of how SARS-CoV-2 and other CoVs usurp cellular antiviral responses and alter cytokine mRNA expression profiles, we performed an analysis of processing bodies (PBs). Our results show  that several SARS-CoV-2 gene products also mediate PB loss and virus-induced PB loss correlates with elevated levels of proinflammatory cytokine mRNAs that would normally be repressed in PBs.

In-hospital outcomes of patients with ST-segment elevation myocardial infarction and COVID-19

Rodriguez-Leor,  O,  Cid Alvarez, et al

EuroIntervention

Epidemiology| Épidémiologie Clinical data| Données cliniques

The objective of this study was to assess clinical and prognosis differences in patients with Covid-19 and STEMI using a nationwide registry of consecutive patients. Our study revealed a significant increase in in-hospital, stent thrombosis and cardiogenic shock development after PCI in patients with STEMI and Covid-19 in comparison with contemporaneous non-Covid-19 STEMI patients.

Immunohistochemical Study of SARS-CoV-2 Viral Entry Factors in the Cornea and Ocular Surface

Roehrich,  H,  Yuan, et al

Cornea

Transmission Clinical data| Données cliniques

The aim of this study was to confirm the ocular tropism of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by evaluating the expression of viral entry factors in human ocular tissues using immunohistochemistry. Results from the five donor corneas find that both corneal and conjunctival epithelia express ACE2, DC-SIGN/DC-SIGNR, and TMPRSS2, suggesting that the ocular surface is a potential route for the transmission of SARS-CoV-2. The risk of viral transmission with corneal transplantation cannot be ruled out, given the presence of ACE2 in corneal epithelium and endothelium.

A 2-Month Follow-Up Study of Psychological Distress among Italian People during the COVID-19 Lockdown

Roma,  P,  Monaro, et al

Int J Environ Res Public Health

Mental Health |
santé mentale

The present study aimed at identifying psychological changes (e.g., changes in depression, stress, and anxiety levels) among the Italian public during the lockdown period, in addition to factors associated with these changes. Results showed an increase in stress and depression over the lockdown, but not anxiety. Negative affect and detachment were associated with higher levels of depression and stress. Higher levels of depression at the start of the lockdown, as well as fewer coping strategies and childlessness, were associated with increased depression at follow-up, whereas higher levels of stress at the start of the lockdown and younger age were associated with higher stress at follow-up.

Turn down of acute aortic syndrome cases during COVID-19: Results from UK multicentre studies

Roman,  M,  Harky, et al

J Card Surg

Healthcare Response | Réponse des soins de santé

The aim of this study was to establish if patients affected by acute aortic syndrome (AAS) had unrestricted access to emergency treatment and evaluate outcome of these patients during the peak of the pandemic. Among 95 patients who presented with an AAS in the participating centers; 85 (89%) underwent surgery, 7 (7%) were turned down for surgery because of their profile of comorbidities, and 3 (3%) died on transfer. Among the patients treated conservatively, three of them (43%) were alive at 30 days. We observed no significant restriction in access to treatment for AAS during the early months of the pandemic.

Inhibition of SARS-CoV-2 in Vero cell cultures by peptide-conjugated morpholino oligomers

Rosenke,  K,  Leventhal, et al

J Antimicrob Chemother

Coronavirology| Coronavirologie Therapeutics| Thérapeutique

Peptide-conjugated morpholino oligomers (PPMO) are antisense compounds composed of a phosphorodiamidate morpholino oligomer covalently conjugated to a cell-penetrating peptide. Five PPMO designed against sequences of genomic RNA in the SARS-CoV-2 5′-untranslated region and a negative control PPMO of random sequence were synthesized.  The data indicate that PPMO have the ability to potently and specifically suppress SARS-CoV-2 growth and are promising candidates for further preclinical development.

COVID-19 pandemic effect on early pregnancy: are miscarriage rates altered, in asymptomatic women?

Rotshenker-Olshinka,  K,  Volodarsky-Perel, et al

Arch Gynecol Obstet

Healthcare Response | Réponse des soins de santé

A retrospective cohort study conducted at a university-affiliated fertility center in Montreal, Quebec, since the COVID-19 shut down, March 13 until May 6, 2020. This study aims to evaluate the effect of the COVID-19 pandemic state on early, first-trimester pregnancies. The COVID-19 pandemic environment does not seem to affect early first-trimester miscarriage rates in asymptomatic patients.

Trends of mutation accumulation across global SARS-CoV-2 genomes: Implications for the evolution of the novel coronavirus

Roy,  C,  Mandal, et al

Genomics

Coronavirology| Coronavirologie

SARS-CoV-2 microevolution was studied alongside the global trends of point-mutation in a universal dataset of 71,703 genomes.  Globally, nsp1/nsp2 and orf7a/orf3a were the most mutation-ridden non-structural and structural genes respectively.  Whole-genome phylogeny revealed that entities belonging to the early lineages are mostly spread over Asian countries (including India) whereas the recently-derived lineages are more globally distributed. A transition: transversion ratio of 2.66 characterized the nucleotide substitution bias of SARS-CoV-2, with cytidine-to-uridine and guanosine-to-uridine conversions being the predominant transition and transversion types respectively. In the pan-genome, cytidine-to-uridine mutations yielding nonsynonymous amino acid replacements have a propensity for changing hydrophilic residues to hydrophobic ones. Nonsynonymous mutations are under positive selection in most of the structural, but not non-structural, genes.

PMC7603978; Genomic exploration light on multiple origin with potential parsimony-informative sites of the severe acute respiratory syndrome coronavirus 2 in Bangladesh

Saha,  O,  Hossain, et al

Gene Rep

Epidemiology| Épidémiologie Coronavirology| Coronavirologie

Viral strains found in Bangladesh mainly came from multiple countries such as France, Germany, India, USA and Brazil. Intra-cluster, and inter-cluster start to circulate in the 8 individual divisions of Bangladesh. 26 parsimony-informative sites along with 256 mutations were found in the circulating strains. Nine deletions throughout the genomes including in ORF7a (8), ORF8 (1).

Family coping strategies during finland’s COVID-19 lockdown

Salin,  M,  Kaittila, et al

Sustainability (Switzerland)

Public Health response| Interventions de santé publique

This study aims to examine how families with children coped during the COVID-19 lockdown in Finland.  An online survey including both qualitative and quantitative questions April and May 2020.  Finnish families employed coping strategies on three levels: macroenvironmental, relationship, and individual.

Pulmonary vascular improvement in severe COVID-19 patients treated with tocilizumab

Salvati,  L,  Occhipinti, et al

Immunol Lett

Clinical data| Données cliniques Therapeutics| Thérapeutique

retrospective observational study, 20 severe COVID-19 patients were treated with tocilizumab in addition to standard-of-care therapy (SOC) and compared with 13 COVID-19 patients receiving only SOC. Clinical respiratory status, inflammatory markers and vascular radiologic score improved after one week from tocilizumab administration--> parameters were stable or worsened in patients receiving only SOC.

Work team identification associated with less stress and burnout among front-line emergency department staff amid the COVID-19 pandemic

Sangal,  RB,  Wrzesniewski, et al

BMJ Leader

Mental Health |
santé mentale

We conducted repeated cross-sectional surveys embedded within emergency department workflow to understand whether team identification was associated with reduced reports of stress and burnout among front-line workers. Higher team identification was associated with significantly less work stress (B=−0.60, 95% CI −0.84 to to -0.40, p<0.001) and burnout (B=−12.87, 95% CI −17.73 to -8.02, p<0.001) in cross-sectional analyses. Further evidence of the protective effect of team identification for work stress (B=−0.36, 95% CI −0.76 to 0.05, p=0.09) and burnout (B=−13.25, 95% CI −17.77 to -8.73, p<0.001) was also found in prospective longitudinal evidence.

Detecting Emerging Symptoms of COVID-19 using Context-based Twitter Embeddings

Santosh,  Roshan,  Schwartz, et al

arXiv

Public Health response| Interventions de santé publique

In this paper, we present an iterative graph-based approach for the detection of symptoms of COVID-19, the pathology of which seems to be evolving. More generally, the method can be applied to finding context-specific words and texts (e.g. symptom mentions) in large imbalanced corpora (e.g. all tweets mentioning #COVID-19). Given the novelty of COVID-19, we also test if the proposed approach generalizes to the problem of detecting Adverse Drug Reaction (ADR). We find that the approach applied to Twitter data can detect symptom mentions substantially before being reported by the Centers for Disease Control (CDC).

The outcomes of the postulated interaction between SARS-CoV-2 and the renin-angiotensin system on the clinician's attitudes toward hypertension treatment

Sarı,  C,  Şimşek, et al

J Hum Hypertens

Healthcare Response | Réponse des soins de santé

This study was designed to assess the practice behaviors of physicians toward hypertension treatment with ACE-i or ARBs during the COVID-19 pandemic.  Of the total respondents, 78.7% reported that they had not changed their antihypertensive medication prescribing pattern, 8.6% of clinicians had changed ACE-i/ ARBs medicine of patients during the COVID-19 pandemic and 12.7% of them were undecided.

Mental health deteriorated mostly in the less educated under repeated COVID-19 outbreaks: A cohort study of Japanese employees

Sasaki,  N,  Kuroda, et al

J Epidemiol

Mental Health |
santé mentale

We investigate psychological distress among employees with low socioeconomic status (SES) in Tokyo , Japan. People of low SES, especially those with low education, maybe be at an increased risk of infection and psychological stress. They have several factors that increase their exposure to COVID-19.  In this cohort, low education workers likely belong to smaller companies, which have been shown to implement less preventive measures for COVID-19.  Besides the infection, they may experience the psychological burden, such as the negative economic effects of COVID-19 control measures (i.e., temporary forced to leave or to reduce an employee's hours of work) on the household due to their unstable work conditions, the harassment related to COVID-19, and fewer social resources. In Japan, low education attainment predicts the risk of suicide.

Inference under Superspreading: Determinants of SARS-CoV-2 Transmission in Germany

Schmidt,  PatrickW

arXiv

Modelling/ prediction| Modélisation/prédiction Public health interventions*| Interventions de sant&amp;eacute; publique

The author proposed a model for aggregated case data that accounts for superspreading and improves statistical inference. In a Bayesian framework, the model is estimated on German data featuring over 60,000 cases with date of symptom onset and age group. Several factors were associated with a strong reduction in transmission: public awareness rising, testing and tracing, information on local incidence, and high temperature. Immunity after infection, school and restaurant closures, stay-at-home orders, and mandatory face covering were associated with a smaller reduction in transmission. The data suggests that public distancing rules increased transmission in young adults. Information on local incidence was associated with a reduction in transmission of up to 44% (95%-CI: [40%, 48%]), which suggests a prominent role of behavioral adaptations to local risk of infection. Testing and tracing reduced transmission by 15% (95%-CI: [9%,20%]), where the effect was strongest among the elderly. Extrapolating weather effects, I estimate that transmission increases by 53% (95%-CI: [43%, 64%]) in colder seasons.

Effect of Hydroxychloroquine on Clinical Status at 14 Days in Hospitalized Patients With COVID-19: A Randomized Clinical Trial

Self,  WH,  Semler, et al

JAMA

Therapeutics| Thérapeutique RCT

This multicenter, blinded, placebo-controlled randomized trial conducted at 34 hospitals in the US, investigates whether treatment with hydroxychloroquine improve clinical outcomes of adults hospitalized with coronavirus disease 2019 (COVID-19).  479 hospitalized adults , the distribution of the day 14 clinical status score (measured using a 7-category ordinal scale) was not significantly different for patients randomized to receive hydroxychloroquine compared with placebo (adjusted odds ratio, 1.02). These findings do not support the use of hydroxychloroquine for treatment of COVID-19 among hospitalized adults.

Symptomatic SARS-CoV-2 re-infection of a health care worker in a Belgian nosocomial outbreak despite primary neutralizing antibody response

Selhorst,  Philippe,  van Ierssel, et al

medRxiv

Epidemiology| Épidémiologie Transmission

A case of re-infection was observed in a Belgian nosocomial outbreak involving 3 patients and 2 health care workers. Re-infection (after 185d) was confirmed in a young, immunocompetent health care worker as viral genomes derived from the first and second episode belonged to different SARS-CoV-2 clades. The second episode, however, was milder and characterized by a fast rise in serum IgG and neutralizing antibodies.

An itchy erythematous papular skin rash as a possible early sign of COVID-19: a case report

Serafini,  A,  Kurotschka, et al

J Med Case Rep

Clinical data| Données cliniques

An Italian 32-year-old female nurse  had several close contacts with multiple patients with COVID-19 as part of her professional workload. On March 13, 2020, the patient developed an itchy, erythematous papular rash (sparing only her face, scalp, and abdomen), which lasted for 10 days. The rash was accompanied by a feeling of general fatigue that gradually worsened over the following days and has continued for 5 months (until the end of July 2020). During the first week of remote assessment carried out by her general practitioner, the patient gradually developed a dry cough, intermittent fever, and diarrhoea and then had a positive test result for SARS-CoV-2. Her skin manifestations disappeared completely 48 days after the onset of the disease, followed by the disappearance of the dry cough.

The Efficacy of Telehealth for the Treatment of Spinal Disorders: Patient-Reported Experiences During the COVID-19 Pandemic

Shafi,  K,  Lovecchio, et al

HSS Journal

Healthcare Response | Réponse des soins de santé

Authors sought to evaluate patient satisfaction with telehealth visits as a platform for delivering care for the treatment of spinal pathology. Eighty-four patients responded to the survey. Their attitudes were largely positive, with an overall mean patient satisfaction score of 4.79. Patients gave high scores for clarity of communication during the visit, and for satisfaction with the formulation of treatment plans and their ability to ask questions, they gave the lowest scores to the effectiveness of telemedicine in replacing an in-person visit and ease of interface navigation.

PMC7641593; Factors associated with increased mortality in hospitalized COVID-19 patients

Shah,  C,  Grando, et al

Ann Med Surg (Lond)

Epidemiology| Épidémiologie Clinical data| Données cliniques

In this study, we identified several risk factors that are associated with increased mortality in COVID-19 patients. A higher proportion of patients were age 65 and older (87.76% vs 53.24%, p < 0.001), and were predominantly male (63.27% vs 52.94%, p = 0.0351). Multivariate analysis showed five variables to be the predictors for mortality: age ≥65 [OR = 3.87, 95% CI (2.01, 7.46), p < 0.001], initial presentation with dyspnea [OR = 1.71, 95% CI (1.03, 2.82), p = 0.037], history of cardiomyopathy [OR = 3.33, 95% CI (1.07, 10.41), p < 0.038], positive initial chest imaging findings [OR = 2.24, CI (1.26, 3.97), p = 0.006], and acute kidney injury (AKI) [OR = 3.33 CI (2.10, 5.28), P < 0.001].

Clinical characteristics of 10 children with a pediatric inflammatory multisystem syndrome associated with COVID-19 in Iran

Shahbaznejad,  L,  Navaeifar, et al

BMC Pediatr

Clinical data| Données cliniques Long-Term Sequelae |
séquelles à long terme

The purpose of this report was to describe the possible association between COVID-19 and PIMS in children.  Findings show that children with COVID-19 may present symptoms similar to Kawasaki disease and inflammatory syndromes. PIMS should be considered in children with fever, rash, seizure, cough, tachypnea, and gastrointestinal symptoms such as vomiting, diarrhea, and abdominal pain.

Comparison of chest ultrasound and standard X-ray imaging in COVID-19 patients

Shumilov,  E,  Hosseini, et al

Ultrasound International Open

Clinical data| Données cliniques Diagnostics / Pathogen detection| Diagnostics / Détection d'agents pathogènes

We aimed to investigate patterns of ChUS in COVID-19 patients and compare the findings with results from chest X-ray (CRX). 24 patients (18 symptomatic, 6 asymptomatic) with confirmed SARS-CoV-2 by polymerase chain reaction underwent bedside ChUS in addition to CRX following admission. 94% (n=17/18) of patients with respiratory symptoms demonstrated lung abnormalities on ChUS. ChUS was especially useful to detect interstitial syndrome compared to CXR in COVID-19 patients (17/18 vs. 11/18; p<0.02).

Filtration Efficiency of Surgical Sterilization Fabric for Respiratory Protection during COVID-19 Pandemic

Sousan,  S,  Garcia, et al

Am J Infect Control

Infection Prevention and Control/ Prévention et contrôle des infections (IPAC/PCI)

The purpose of this study was to assess the efficiency of the Halyard H600 as a respirator filtering material as compared to the NIOSH-certified N95 and P100 filters, and determine if H600 is a good alternative for respiratory protection for healthcare professionals during the COVID-19 pandemic. The high variability in filter efficiency for particles ≤324 nm and the increased fabric breathing resistance demonstrate that the Halyard H600 has an inferior performance and is not a good substitute for N95 and P100.

Virucidal efficacy of different formulations for hand and surface disinfection targeting SARS CoV-2

Steinhauer,  Katrin,  Meister, et al

bioRxiv

Infection Prevention and Control/ Prévention et contrôle des infections (IPAC/PCI)

This study demonstrates that two commercially available formulations for surface disinfection and one formulation for hand disinfection claiming “virucidal activity against enveloped viruses” are effectively inactivating SARS-CoV-2. This study emphasizes that chemical disinfectants claiming “virucidal activity against enveloped viruses” are an effective choice to target enveloped SARS-CoV-2 as a preventive measure.

PMC7499595; The Fibrosis-4 Index Is Associated With Need for Mechanical Ventilation and 30-Day Mortality in Patients Admitted With Coronavirus Disease 2019

Sterling,  RK,  Oakes, et al

J Infect Dis

Epidemiology| Épidémiologie Clinical data| Données cliniques

The Fibrosis-4 Index (FIB-4), developed to predict fibrosis in liver disease, was used to identify patients with coronavirus disease 2019 who will require ventilator support as well as those associated with 30-day mortality. Multivariate analysis found obesity (odds ratio [OR], 4.5), diabetes mellitus (OR, 2.55), and FIB-4 ≥2.67 (OR, 3.09) independently associated with need for mechanical ventilation.

The Dutch labour market early on in the COVID-19 outbreak: Regional coronavirus hotspots and the national lockdown

Submitter,  Melbourne Institute,  Hassink, et al

SSRN- Lancet prepublication

Epidemiology| Épidémiologie Public health interventions*| Interventions de sant&amp;eacute; publique Economics | Économie

We explore the impact of COVID-19 hotspots and regional lockdowns on the Dutch labour market. The results suggest individual characteristics are more important, including the employee’s age, type of contract and type of job. The evidence suggests that the decline of the labour market was all due to the impacts from the government-enforced lockdown and higher virus case numbers did not reinforce this decline. This suggests that preventive health measures should be at the regional level, isolating hotspots from low-risk areas.

Factors influencing intention to follow the “stay at home” policy during the COVID-19 pandemic

Sumaedi,  S,  Bakti, et al

International Journal of Health Governance

Public Health response| Interventions de santé publique

The findings show that attitude towards the behavior, subjective norm and perceived behavioral control positively and significantly affect intention to follow “Stay at Home” during the COVID-19 pandemic. However, perceived susceptibility and perceived severity of COVID-19 do not significantly influence the intention to follow “Stay at Home” during the COVID-19 pandemic.

Multisystem Inflammatory Syndrome in Children

Tabaac,  S,  Kothari, et al

J Emerg Med

Clinical data| Données cliniques Long-Term Sequelae |
séquelles à long terme

This case report describes the presentation, findings, workup, and treatment for a 9-year-old boy diagnosed with multisystem inflammatory syndrome in children (MIS-C).

Chest CT in COVID-19 pneumonia: what are the findings in mid-term follow-up?

Tabatabaei,  SMH,  Rajebi, et al

Emerg Radiol

Epidemiology| Épidémiologie Clinical data| Données cliniques Long-Term Sequelae |
séquelles à long terme

The purposes of this study are to investigate mid-term chest computed tomography (CT) findings of coronavirus disease 2019 (COVID-19) pneumonia, assess the rate of complete resolution, and determine the individuals at risk for residual abnormalities. Extensive lung involvement on initial CT, ICU admission, long duration of hospitalization, presence of underlying medical conditions, high initial WBC count, and development of leukocytosis during the course of disease are associated with more prevalence of chronic lung sequela of COVID-19.

PMC7499591; Are Seroprevalence Estimates for Severe Acute Respiratory Syndrome Coronavirus 2 Biased?

Takahashi,  S,  Greenhouse, et al

J Infect Dis

Epidemiology| Épidémiologie

Biased seroprevalence estimates can occur using serological assays optimized with validation sets unrepresentative of disease spectrum in the general population. Correct interpretation of serosurveys for severe acute respiratory syndrome coronavirus 2 requires quantifying variations in sensitivity with disease severity and over time.

Estimating transmission dynamics and serial interval of the first wave of COVID-19 infections under different control measures: A statistical analysis in Tunisia from February 29 to May 5, 2020

Talmoudi,  Khouloud,  Safer, et al

Research Square prepub

Epidemiology| Épidémiologie

We estimate serial interval (SI) and temporal reproduction number (Rt) of SARS-CoV-2 in Tunisia.

Health Information Consumption under COVID-19 Lockdown: An Interview Study of Residents of Hubei Province, China

Tang,  L,  Zou, et al

Health Commun

Public Health response| Interventions de santé publique

Presented here is a study of how residents of Hubei Province, the epicenter of the COVID-19 outbreak in China, use media for information seeking, scanning, and sharing while under lockdown through in-depth interviews. These findings provide insights into how individuals in China use different media for information during an unprecedented public health crisis and make sense of the limited and often confusing and contradictory information that is available to them.

Analysis of the Impact of Mask-wearing in Viral Spread: Implications for COVID-19

Tian,  Yurun,  Sridhar, et al

arXiv

Modelling/ prediction| Modélisation/prédiction Public health interventions*| Interventions de santé publique

In this paper, we investigate the impact of mask-wearing in spreading processes over complex networks. This is done by studying a heterogeneous bond percolation process over a multi-type network model, where nodes can be one of two types (mask-wearing, and not-mask-wearing). We provide analytical results that accurately predict the expected epidemic size and probability of emergence as functions of the characteristics of the spreading process (e.g., transmission probabilities, inward and outward efficiency of the masks, etc.), the proportion of mask-wearers in the population, and the structure of the underlying contact network.

Putting the world back to work: an expert system using big data and artificial intelligence in combating the spread of COVID-19 and similar contagious diseases

Tkatek,  S,  Belmzoukia, et al

Work

Public health interventions*| Interventions de sant&amp;eacute; publique

The objective of this work is to develop an expert system that combines several solutions to combat COVID-19. The main solution is based on a new developed software called General Guide (GG) application. This expert system allows us to explore, monitor, forecast, and optimize the data collected in order to take an efficient decision to ensure the safety of citizens, forecast, and slow down the spread’s rate of COVID-19. It will also facilitate countries’ interventions and optimize resources. This developed expert system can assist in stopping the spread of COVID-19 globally and putting the world back to work.

Computational drug re-purposing targeting the spike glycoprotein of SARS-CoV-2 as an effective strategy to neutralize COVID-19

Toor,  HG,  Banerjee, et al

Eur J Pharmacol

Coronavirology| Coronavirologie Therapeutics| Thérapeutique

We implemented a drug re-purposing approach wherein the inhibitory efficacy of a cluster of thirty known drug candidates comprising of antivirals, antibiotics and phytochemicals (selection contingent on their present developmental status in underway clinical trials) was elucidated by subjecting them to molecular docking analyses against the spike protein RBD model. Our results indicated that Camostat, Favipiravir, Tenofovir, Raltegravir and Stavudine showed significant interactions with spike RBD of SARS-CoV-2.

Gout, rheumatoid arthritis and the risk of death from COVID-19: an analysis of the UK Biobank

Topless,  Ruth,  Phipps-Green, et al

medRxiv

Epidemiology| Épidémiologie Clinical data| Données cliniques

We assess whether gout and / or rheumatoid arthritis (RA) are risk factors for coronavirus disease 19 (COVID-19) diagnosis and whether gout and / or RA are risk factors for death from COVID-19. RA and gout are not risk factors for COVID-19-diagnosis. However RA, but not gout, is a risk factor for death from COVID-19 in a population-based analysis using the UK Biobank.

The impact of COVID-19 pandemic on people with Mild Cognitive Impairment / Dementia and on their caregivers

Tsapanou,  A,  Papatriantafyllou, et al

Int J Geriatr Psychiatry

Public Health response| Interventions de santé publique

The aim of the current study was to analyze the impact of COVID‐19 pandemic on older adults with Mild Cognitive Impairment (MCI)/dementia and their caregivers as well. Two hundred and four caregivers took part in the study. Results indicated a significant overall decline of the people with MCI/dementia. Further, the domains in which people with MCI/dementia were mostly affected were: communication, mood, movement, and compliance with the new measures. Caregivers also reported a great increase in their psychological and physical burden during this period, where the available support sources were limited.

NYU-EDA in Modelling the Effect of COVID-19 on Patient Volumes in A Finnish Emergency Department

Tuominen,  Jalmari,  Hällberg, et al

Research Square prepub

Healthcare Response | Réponse des soins de santé

We acquired a retrospective cohort containing all ED visits in a Finnish secondary care hospital during years 2018, 2019 and 2020. We compared the number of presentations in 2020 during the national state of emergency, i.e. from March 16 to June 11, with numbers from 2018 and 2019. We observed a significant reduction in total ED visits in the course of national state of emergency. Presentations were reduced in most of the NYU-EDA groups irrespective of the assessed acuity.

PMC7642739; Unilateral livedo reticularis in COVID-19 patient: Case with fatal outcome

Tusheva,  I,  Damevska, et al

JAAD Case Rep

Clinical data| Données cliniques

We report a case of unilateral LR in a patient with fatal outcome, presenting initial and follow-up patient clinical and laboratory findings. A previously healthy 59-year-old female presented with an eight-day history of dry cough, mild dyspnea, and a low-grade fever.

Association Between the COVID-19 Outbreak and Mental Health in India: A Google Trends Study

Uvais,  NA

Prim Care Companion CNS Disord

Mental Health |
santé mentale

The objective of this study was to use the Google Trends search volume index (SVI), a normalized value from 0 to 100, to understand whether changes in the number of COVID-19 cases and deaths are associated with SVI of contents associated with mental health in India. There were significant positive correlations between the SVI for all keywords in English and the number of COVID-19 cases and deaths in India: depression, anxiety, insomnia, and suicide. Moreover, there were a higher number of searches for the terms suicide and depression compared to other search terms.

Gender differences in diagnostic and treatment measures in patients with covid-19 and characteristics of their inpatient rehabilitation

Vechyorko,  VI,  Evsikov, et al

Profilakticheskaya Meditsina

Epidemiology| Épidémiologie Clinical data| Données cliniques

The purpose of the study is to assess the available treatment methodologies, physical and psychological rehabilitation in patients (men and women) with a viral infection COVID-19 in 2020, complicated by viral pneumonia, who underwent inpatient treatment in the therapeutic department of the city clinical hospital No. 15 named after. O. M. Filatov DZM. There were slight gender differences: the maximum number (51.5%) of cases of pneumonia of the 2nd degree of severity was observed in men, and in women, pneumonia of the 1st degree was encountered with the highest frequency (48.2%).

Mood of India during Covid-19 - An interactive web portal based on emotion analysis of twitter data

Venigalla,  ASM,  Chimalakonda, et al

 

Public Health response| Interventions de santé publique

We present a web portal that aims to display mood of India during Covid-19, based on real time twitter data. As of 25 June 2020, the web portal has about 703618 tweets, and each of these tweets are classified into seven categories that include six basic emotions and a neutral category.

Internet use and well-being during the COVID-19 outbreak: Examining the role of gender, age, motives for using the internet and relational resources in an Italian adult sample

Venuleo,  Claudia,  Marino, et al

Research Square prepub

Mental Health |
santé mentale

The current study aims to show whether internet worked as a resource for well-being or as an amplifier of psychological distress and problematic internet use (PIU), considering the role of gender, age, motives for using the internet and online/offline relational resources. Five hundred and seventy-three adult participants (M: 40.28; SD: 16.43; 64% women) completed a form on sociodemographic characteristics and Internet use, and completed standardized measures on loneliness, online social support, well-being and PIU. Differences were found in the likelihood of PIU and well-being related to all the variables considered, with the exception of online social support for PIU and gender and age for well-being. These findings call for further research aimed to disentangle the correlates of PIU in a time of physical distancing, as well as for innovative efforts tailored to blunt the impacts of social isolation and bolster social connectivity.

Secondary structure determination of conserved SARS-CoV-2 RNA elements by NMR spectroscopy

Wacker,  A,  Weigand, et al

Nucleic Acids Res

Coronavirology| Coronavirologie

Here, we report the characterization of 15 conserved RNA elements located at the 5' end, the ribosomal frameshift segment and the 3'-untranslated region (3'-UTR) of the SCoV2 genome, their large-scale production and NMR-based secondary structure determination. The NMR data are corroborated with secondary structure probing by DMS footprinting experiments. The close agreement of NMR secondary structure determination of isolated RNA elements with DMS footprinting and NMR performed on larger RNA regions shows that the secondary structure elements fold independently. The NMR data reported here provide the basis for NMR investigations of RNA function, RNA interactions with viral and host proteins and screening campaigns to identify potential RNA binders for pharmaceutical intervention.

COVID-19 in the Early Postoperative Period of Liver Transplantation: Is the Outcome Really So Positive?

Waisberg,  DR,  Abdala, et al

Liver Transpl

Epidemiology| Épidémiologie Clinical data| Données cliniques

We read with interest Massoumi et al.'s article((1)) regarding 5 patients who developed coronavirus disease 2019 (COVID-19) in the early postoperative period of liver transplantation (LT). None of them exhibited severe disease and they all fully recovered, suggesting that COVID-19 in the early postoperative period of LT might not be associated with unfavorable outcomes. Here, we share our experience with 7 cases, which was not so promising.

Vitamin D - contrary to vitamin K - does not associate with clinical outcome in hospitalized COVID-19 patients

Walk,  Jona,  Dofferhoff, et al

medRxiv

Clinical data| Données cliniques

Vitamin K deficiency was recently found to associate with clinical outcome in a cohort of COVID-19 patients. Vitamin D has been hypothesized to reduce disease susceptibility by modulating inflammation, yet little is known about its role in disease severity. Considering the critical interaction between vitamin K and vitamin D in calcium and elastic fiber metabolism, we determined vitamin D status in the same cohort of 135 hospitalized COVID-19 patients by measuring blood 25(OH)D levels. We found no difference in vitamin D status between those with good and poor outcome (defined as intubation and/or death). Instead, we found vitamin D sufficient persons (25(OH)D >50 nmol/L) had accelerated elastic fiber degradation compared to those with mild deficiency (25(OH)D 25-50 nmol/L). Based on these findings, we hypothesize that vitamin D might have both favorable anti-inflammatory and unfavorable pro-calcification effects during COVID-19 and that vitamin K might compensate for the latter.

Single cell multiomic profiling of human lung reveals cell type-specific and age-dynamic control of SARS-CoV2 host genes

Wang,  A,  Chiou, et al

Elife

Clinical data| Données cliniques Coronavirology| Coronavirologie

Here, we present single-nucleus accessible chromatin profiles of 90,980 nuclei and matched single-nucleus transcriptomes of 46,500 nuclei in non-diseased lung from donors of ~30 weeks gestation, ~3 years and ~30 years. We mapped candidate cis-regulatory elements (cCREs) and linked them to putative target genes. We identified distal cCREs with age-increased activity linked to SARS-CoV-2 host entry gene TMPRSS2 in alveolar type 2 cells which had immune regulatory signatures and harbored variants associated with respiratory traits. At the 3p21.31 COVID-19 risk locus, a candidate variant overlapped a distal cCRE linked to SLC6A20, a gene expressed in alveolar cells and with known functional association with the SARS-CoV-2 receptor ACE2. Our findings provide insight into regulatory logic underlying genes implicated in COVID-19 in individual lung cell types across age.

Differences in the clinical characteristics and outcomes of COVID-19 patients in the epicenter and peripheral areas of the pandemic from China: a retrospective, large-sample, comparative analysis

Wang,  Gang,  Luo, et al

Research Square prepub

Epidemiology| Épidémiologie Clinical data| Données cliniques

This study was conducted to investigate the differences in the epidemiological and clinical characteristics of patients with COVID-19 between the epicenter and peripheral areas of pandemic. The Sichuan & Wuhan Collaboration Research Group for COVID-19 established two retrospective cohorts that separately reflect the epicenter and peripheral area during the early pandemic. The epidemiology, clinical characteristics and outcomes of patients in the two groups were compared. The Wuhan (epicenter) cohort included 710 randomly selected patients, and the peripheral (Sichuan) cohort included 474 consecutive patients. The worse outcomes in the epicenter could be explained by the prolonged time from illness onset to hospital and ICU admission.

Modelling the initial epidemic trends of COVID-19 in Italy, Spain, Germany, and France

Wang,  K,  Ding, et al

PLoS One

Modelling/ prediction| Modélisation/prédiction Transmission

We applied an extended Susceptible-Exposed-Infectious-Removed (SEIR) model to fit the epidemic trend and estimated corresponding epidemic features. The transmission rate estimates were 1.67 (95% credible interval (CrI), 1.64-1.71), 2.83 (2.72-2.85), 1.91 (1.84-1.98), and 1.89 (1.82-1.96) for Italy, Spain, Germany, and France, corresponding to the basic reproduction numbers (R0) 3.44 (3.35-3.54), 6.25 (5.97-6.55), 4.03 (3.84-4.23), and 4.00 (3.82-4.19), respectively. We found Spain had the lowest ascertainment rate of 0.22 (0.19-0.25), followed by France, Germany, and Italy of 0.45 (0.40-0.50), 0.46 (0.40-0.52), and 0.59 (0.55-0.64). Given the high transmissibility and high covertness of COVID-19, strict countermeasures, such as national lockdown and social distancing, were essential to be implemented to reduce the spread of the disease.

Kinetic changes in virology, specific antibody response and imaging during the clinical course of COVID-19: a descriptive study

Wang,  QJ,  Yao, et al

BMC Infect Dis

Clinical data| Données cliniques Immunology | Immunologie

The aim of this study is to explore the kinetic changes in virology, specific antibody response and imaging during the clinical course of COVID-19. This observational study enrolled 20 patients with COVID-19, who were hospitalized between January 20-April 6, 2020, in the two COVID-19 designated hospitals of Zhoushan, Zhejiang and Rushan, Shandong, China. SARS-COV-2 RNA was positive as early as day four. It remained positive until day 55 post-onset in the sputum-throat swabs and became negative in most cases (55%) within 14 days after onset. Lymphocytopenia occurred in 40% (8/20) of patients during the peak infection period and returned to normal at week five. The most severe inflammation in the lungs appeared in week 2 or 3 after onset, and this was completely absorbed between week 6 and 8 in 85.7% of patients. All COVID-19 patients in this study were self-limiting and recovered well though it may take as long as 6-8 weeks.

PMC7434407; Detection of SARS-CoV-2 in raw and treated wastewater in Germany - Suitability for COVID-19 surveillance and potential transmission risks

Westhaus,  S,  Weber, et al

Sci Total Environ

Epidemiology| Épidémiologie Surveillance

An extensive sampling campaign, including nine municipal wastewater treatment plants, has been conducted in different cities of the Federal State of North Rhine-Westphalia (Germany) on the same day in April 2020, close to the first peak of the corona crisis. Samples were processed and analysed for a set of SARS-CoV-2-specific genes, as well as pan-genotypic gene sequences also covering other coronavirus types, using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Results of the RT-qPCR based gene analysis indicate the presence of SARS-CoV-2 genetic traces in different raw wastewaters. Furthermore, selected samples have been sequenced using Sanger technology to confirm the specificity of the RT-qPCR and the origin of the coronavirus. A comparison of the particle-bound and the dissolved portion of SARS-CoV-2 virus genes shows that quantifications must not neglect the solid-phase reservoir. This first evidence suggests that wastewater might be no major route for transmission to humans. Our findings draw attention to the need for further methodological and molecular assay validation for enveloped viruses in wastewater.

Quantifying the Backlog of Total Hip and Knee Arthroplasty Cases: Predicting the Impact of COVID-19

Wilson,  JM,  Schwartz, et al

HSS Journal

Healthcare Response | Réponse des soins de santé

To help strategize an effective return to elective orthopedic surgery, we aimed to quantify the volume of total hip arthroplasty (THA) and  total knee arthroplasty (TKA) cases delayed across the USA and estimate the time required to care for these patients when non-urgent surgery resumes. Population-level data was used to estimate monthly THA and TKA procedural volume from 2011 to 2017. Using linear regression, we used this data to project monthly procedural volumes for 2020 to 2023. The projected national volume of delayed cases was 155,293 (mid-March through April; 95% CI 142,004 to 168,580), 260,806 (through May; 95% CI 238,658 to 282,952), and 372,706 (through June; 95% CI 341,699 to 403,709). The best- and worst-case scenarios for delayed cases were 77,646 (95% CI 71,002 to 84,290) and 372,706 (95% CI 341,699 to 403,709), respectively. The COVID-19 pandemic has generated a significant backlog of THA and TKA procedures.

COVID-19 Transmission in a Psychiatric Long-Term Care Rehabilitation Facility: An Observational Study

Xiong,  GL,  Atkin, et al

Prim Care Companion CNS Disord

Epidemiology| Épidémiologie Clinical data| Données cliniques

The aim of this study is to report the clinical characteristics and transmission rate of coronavirus disease 2019 (COVID-19) in a community inpatient long-term care psychiatric rehabilitation facility designed for persons with serious mental illness. This study examined a cohort of 54 residents of a long-term care psychiatric rehabilitation program from March to April 2020. Of the residents, the primary psychiatric diagnoses were schizoaffective disorder: 28 (51.9%), schizophrenia: 21 (38.9%), bipolar I disorder: 3 (5.5%), and unspecified psychotic disorder: 2 (3.7%). Forty (74%) of 54 residents tested positive for SARS-COV-2, with a doubling time of 3.9 days. Psychiatric and medical conditions were not significantly associated with contracting SARS-COV-2, with the exception of obesity (n = 17 43%] positive vs n = 12 86%] negative, P = .01).  Research is needed to determine optimal strategies for long-term care mental health settings that incorporate frequent testing and personal protective equipment use to prevent rapid transmission of SARS-COV-2.

The Impact of COVID-19 Pandemic on Colorectal Cancer Patients: A Single-Center Retrospective Study

Xu,  Yun,  Huang, et al

Research Square prepub

Healthcare Response | Réponse des soins de santé

This study evaluated the impact of the pandemic on colorectal cancer (CRC) patients at our center and aimed to share lessons learned with clinics currently experiencing this impact. We retrospectively collected data on CRC patients admitted between January 1, 2020 and May 3, 2020; the control group comprised patients admitted between January 1, 2019 and May 3, 2019. During the pandemic, outpatient volumes decreased significantly, especially among nonlocal and elderly patients. 710 CRC patients underwent curative enterectomy. The proportion of laparoscopic surgery was 49.4%, which was significantly higher than the 39.5% patients who received a laparoscopic surgery during the same period in 2019. CRC patients who are confirmed to be infection-free can receive routine treatment. Using online medical counseling and appropriate identification, treatment and follow-up was effectively maintained.

Platypus: an open-access software for integrating lymphocyte single-cell immune repertoires with transcriptomes

Yermanos,  Alexander,  Agrafiotis, et al

bioRxiv

Clinical data| Données cliniques Immunology | Immunologie

Here, we present Platypus, an open-source software platform providing a user-friendly interface to investigate B cell receptor (BCR) and T cell receptor (TCR) repertoires from single-cell sequencing experiments. To showcase the capabilities of Platypus, we use it to analyze and visualize single-cell immune repertoires and transcriptomes from B and T cells from convalescent COVID-19 patients, revealing unique insight into the repertoire features and transcriptional profiles of clonally expanded lymphocytes. Platypus will expedite progress by increasing accessibility to the broader immunology community by facilitating the analysis of single-cell immune repertoire and transcriptome sequencing.

Impact of COVID-19 Pandemic on Emergency Calls and Trauma Emergency Calls in Hangzhou

Zhang,  Guohu,  Wang, et al

Research Square prepub

Healthcare Response | Réponse des soins de santé

This study aimed to investigate the impact of the coronavirus disease 2019 (COVID-19) pandemic on emergency calls and trauma emergency calls in Hangzhou, Zhejiang, China. This was a single-center retrospective study. Data on emergency calls and trauma emergency calls in Hangzhou during the COVID-19 epidemic (January 23, 2020, to March 15, 2020) were collected from the Hangzhou Emergency Center (HEC).  The number of emergency calls from HEC decreased by 17.1%, ambulance assignments by 29.1%, rescue personnel first-aid calls by 22.4%, and trauma emergency calls by 40.8% in 2020 compared with those during the same period in 2019. The numbers of emergency calls from HEC and trauma emergency calls significantly decreased during the COVID-19 epidemic in Hangzhou, highlighting serious social issues that required the attention of the medical community and the government.

The Psychological Responses and Associated Factors of Chinese College Students During COVID-19 Outbreak in February

Zhang,  Xu-dong,  Jing, et al

Research Square prepub

Mental Health |
santé mentale

We used the Self-Rating Anxiety Scale (SAS), Self-Rating Depression Scale (SDS), and the compulsive behavior part of the Yale-Brown Obsessive-Compulsive Scale (YBOCS), combined with demographic information, using online questionnaires to research, and the study was conducted between February 21 and 24, 2020. A total of 2270 valid questionnaires were collected, the respondents of these questionnaires included 563 medical students and 1707 non-medical students.  Of the 563 medical students, 20 (3.55%) students had anxiety symptoms, and 57 (10.12%) students had depressive symptoms. Results indicated that gender, age, contact history of similar infectious disease, past medical history (PMH), compulsive behavior, regularity of daily life, and exercise during the epidemic outbreak are the key factors making college students anxious or depressed.

Excretion of SARS-CoV-2 through faecal specimens

Zhang,  Y,  Chen, et al

Emerg Microbes Infect

Clinical data| Données cliniques Coronavirology| Coronavirologie

The possibility of potential faecal-oral transmission was investigated in this study. We collected 258 faecal specimens from nine provinces in China and detected the nucleic acid of SARS-CoV-2 using real-time RT-PCR. Vero cells were used to isolate the virus from SARS-CoV-2 nucleic acid positive samples, after which sequencing of Spike gene in eight samples was performed. In all, 93 of 258 (36%) stool samples were positive for SARS-CoV-2 RNA. The positive rates of critical, severe, moderate, and mild patients were 54.4%, 56.1%, 30.8%, and 33.3%, respectively. The live virus in faeces could be an important source of contamination, which may lead to infection and further spread in areas with poor sanitary conditions.

The Impact of Social Distancing and Masking on COVID-19 Spread and Consumer Spending

Zhao,  Nan,  Thomadsen, et al

SSRN- Lancet prepublication

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie Public health interventions*| Interventions de sant&amp;eacute; publique

We examine the impact of Social Distancing and Masking on the spread of COVID-19 and on consumer spending. We first estimate models of COVID-19 spread and consumer spending. We find that social distancing has a large effect on reducing COVID-19 spread, while the evidence on mask mandates is mixed. We also find that social distancing reduces consumer spending, but that mask mandates increase consumer spending. Mask mandates also reduce social distancing, magnifying the positive effect on spending. Finally, we observe that social distancing varies significantly by political affiliation, with counties that had high vote shares for Trump in 2016 engaging in significantly less social distancing than counties that had low vote shares for Trump in 2016. We demonstrate that if the whole country had engaged in Trump-supporting levels of social distancing instead of non-Trump-supporting levels of social distancing, COVID-19 cases and deaths would be much higher, while consumer spending would only increase modestly.

Analysis of Anxiety-Related Factors amongst Frontline Dental Staff during the COVID-19 Pandemic in Yichang, China

Zhao,  Suli,  Cao, et al

Research Square prepub

Mental Health |
santé mentale

This study compared the anxiety level of the frontline dental staff (FDS) to the general public in Yichang during the coronavirus disease of 2019 (COVID-19) pandemic and examined potential explanatory factors to the differences. Two online questionnaires were used separately to collect data from FDS and the general public. The Chinese version of Becker Anxiety Inventory (BAI) was included for the assessment of anxiety. In general, FDS were 4.342 (95% CI: 2.427-7.768) times more likely to suffer from anxiety disorder than the general public. The bivariate analysis showed that age, Level Three Protective Measures (PM-3), conflicts with patients and/or colleagues were moderately associated with the anxiety state of FDS. During the COVID-19 pandemic, FDS were more likely to suffer from anxiety disorders than the general public.

Concerns About Information Regarding COVID-19 on the Internet: Cross-Sectional Study

Zhao,  Y,  Xu, et al

J Med Internet Res

Public Health response| Interventions de santé publique

Our objectives were to determine Chinese netizens' concerns related to COVID-19 and the relationship between their concerns and information on the internet. We also aimed to elucidate the association between individuals' levels of concern, knowledge, and behaviors related to COVID-19. The questionnaire, which consisted of 15 closed-ended questions, was designed to investigate Chinese netizens' knowledge about COVID-19. In total, 10,304 respondents were surveyed on the internet (response rate=1.75%; 10,304/590,000). Nearly all (n=9803, 95.30%) participants were concerned about "confirmed cases" of COVID-19, and 87.70% (n=9036) received information about the outbreak through social media websites. There were significant differences in participants' concerns by sex (P=.02), age (P<.001), educational attainment (P=.001), and occupation (P<.001). This study elucidated Chinese netizens' concerns, information sources, and preventive behaviors related to the COVID-19 pandemic. Sex, educational attainment, occupation and employment status, knowledge acquisition, and level of concern were key factors associated with proper preventive behaviors.

Epidemiological Modeling Analysis Reveals the Transmission Potential of COVID-19 Asymptomatic Patients:A Prospective Study of Epidemiological Transmission in America

Zhao,  Yuhang,  Ji, et al

Research Square prepub

Modelling/ prediction| Modélisation/prédiction Epidemiology| Épidémiologie Transmission

We propose a new model to predict the course of the epidemic and simulate the transmission of the asymptomatic. The model considers seven stages of infection: susceptible (S), exposed (E), infected (I), asymptomatic (A), confirmed (C), recovered (R), dead (D), we named it as SEIACRD. We used a model to study the interaction between asymptomatic patients and viral transmission. Our model confirms that about 12 million people will be infected with the virus. Changes in mortality rates will be volatile, first falling, then rising. Not only the number of patients, but also the spread of the epidemic will be affected by the ability to detect asymptomatic persons. American Asymptomatic patients have a strong interaction with epidemic transmission.

COVID-19 treatments and pathogenesis including anosmia in K18-hACE2 mice

Zheng,  J,  Wong, et al

Nature

Therapeutics| Thérapeutique Animal model | Modèle animal

Although COVID-19 severity ranges from asymptomatic to lethal, most experimental infections provide insights into mild disease. Here, using K18-hACE2 mice that we originally developed for SARS studies, we show that infection with SARS-CoV-2 causes severe disease in the lung, and in some mice, the brain. Evidence of thrombosis and vasculitis was detected in mice with severe pneumonia. Furthermore, we show that infusion of convalescent plasma from a recovered patient with COVID-19 protected against lethal disease. Mice developed anosmia at early times after infection. Notably, although pre-treatment with convalescent plasma prevented notable clinical disease, it did not prevent anosmia. Thus, K18-hACE2 mice provide a useful model for studying the pathological underpinnings of both mild and lethal COVID-19 and for assessing therapeutic interventions.

PMC7598448; Experimental and numerical study on the transport of droplet aerosols generated by occupants in a fever clinic

Zhou,  Y,  Ji, et al

Build Environ

Transmission Healthcare Response | Réponse des soins de santé

This study aims to investigate the transport of droplet aerosols generated by both doctors and patients to seek measures to reduce the risk of infection. Taking a typical fever clinic as an object of study, two links in the actual diagnosis and treatment process are selected in this manuscript for investigation by experimental and numerical methods. The effects of different cases of coughing and talking, as well as different contact distances, on the inhalation rate of human droplet aerosols are studied. The purification capacity of the ventilation is evaluated by the analysis results of the particle diffusion track and regional concentration of the entire indoor area and breathing zones. The results show that purification of the same number of droplet aerosols and purification by ventilation work better for coughing than for talking. The best ventilation performance appeared for the case of a patient sitting and coughing (PSC), while the case of a patient lying and talking (PLT) was the worst. Corresponding measures are suggested to improve the air purification effect and reduce the risk of cross infection.

Recent advances in therapeutic applications of neutralizing antibodies for virus infections: an overview

Ali,  MG,  Zhang, et al

Immunol Res

Review Literature| Revue de littérature

 

PMC7606074; Cytokine storm induced new onset depression in patients with COVID-19. A new look into the association between depression and cytokines -two case reports

Alpert,  O,  Begun, et al

Brain Behav Immun Health

Review Literature| Revue de littérature

 

Review of Cardiac Involvement in Multisystem Inflammatory Syndrome in Children

Alsaied,  T,  Tremoulet, et al

Circulation

Review Literature| Revue de littérature

 

PMC7642728; Coagulopathies in novel coronavirus (SARS-CoV-2) pandemic: emerging evidence for hematologists

AlSubaie,  AM

Saudi J Biol Sci

Review Literature| Revue de littérature

 

Skin manifestations of COVID-19 in children: Part 2

Andina,  D,  Belloni-Fortina, et al

Clin Exp Dermatol

Review Literature| Revue de littérature

 

A bibliometric analysis of covid-19 across science and social science research landscape

Aristovnik,  A,  Ravšelj, et al

Sustainability (Switzerland)

Review Literature| Revue de littérature

 

COVID-19: The Role of the Ophthalmologist in ICU

Bhalla,  M,  Jolly, et al

Semin Ophthalmol

Review Literature| Revue de littérature

 

PMC7642729; Deep Learning and Medical Image Processing for Coronavirus (COVID-19) Pandemic: A Survey

Bhattacharya,  S,  Reddy Maddikunta, et al

Sustain Cities Soc

Review Literature| Revue de littérature

 

The Circadian Clock and Viral Infections

Borrmann,  H,  McKeating, et al

J Biol Rhythms

Review Literature| Revue de littérature

 

Advancements in protein nanoparticle vaccine platforms to combat infectious disease

Butkovich,  N,  Li, et al

Wiley Interdiscip Rev Nanomed Nanobiotechnol

Review Literature| Revue de littérature

 

Biochemical and statistical lessons from the evolution of the SARS-CoV-2 virus: paths for novel antiviral warfare

Cluzel,  N,  Lambert, et al

Comptes rendus biologies

Review Literature| Revue de littérature

 

The single-cell landscape of immunological responses of CD4+ T cells in HIV versus severe acute respiratory syndrome coronavirus 2

Collora,  JA,  Liu, et al

Curr Opin HIV AIDS

Review Literature| Revue de littérature

 

PMC7604014; Strategies to exiting the COVID-19 lockdown for workplace and school: A scoping review

D'Angelo,  D,  Sinopoli, et al

Saf Sci

Review Literature| Revue de littérature

ScR

COVID-19: Is there a role for immunonutrition in obese patient?

Di Renzo,  L,  Gualtieri, et al

J Transl Med

Review Literature| Revue de littérature

 

Breastfeeding during the novel coronavirus (COVID-19) pandemic: guidelines and challenges

Dimopoulou,  D,  Triantafyllidou, et al

J Matern Fetal Neonatal Med

Review Literature| Revue de littérature

 

Will prenatal exposure to SARS-CoV-2 define a birth cohort with accelerated aging in the century ahead?

Easterlin,  MC,  Crimmins, et al

J Dev Orig Health Dis

Review Literature| Revue de littérature

 

PMC7641538; Identifying evidence informed psychological interventions during the COVID-19 pandemic: Rapid review of the literature

Fredericks,  S,  Miranda, et al

Brain Behav Immun Health

Review Literature| Revue de littérature

Rapid Review:

Eye Banking: One Cornea for Multiple Recipients

Gadhvi,  KA,  Coco, et al

Cornea

Review Literature| Revue de littérature

 

The biology of coronaviruses, with special regards to SARS-CoV-2-and COVID-19

Gyula,  B,  Ádám, et al

Magyar Allatorvosok Lapja

Review Literature| Revue de littérature

 

Impact of Remote Consultations on Antibiotic Prescribing in Primary Health Care: Systematic Review

Han,  SM,  Greenfield, et al

J Med Internet Res

Review Literature| Revue de littérature

SR: Searches were conducted in MEDLINE, Embase, HMIC, PsycINFO, and CINAHL for literature published since the databases' inception to February 2020.  There is insufficient evidence to confidently conclude that remote consulting has a significant impact on antibiotic prescribing in primary care. However, studies indicating higher prescribing rates in remote consultations than in face-to-face consultations are a concern.

Impact of Hydroxychloroquine on Mortality in Hospitalized Patients with COVID-19: Systematic Review and Meta-Analysis

Hong,  TS,  Gonzalez, et al

Pharmacy (Basel)

Review Literature| Revue de littérature

SR-MA:  searched PubMed, Web of Science, and medRxiv databases. HCQ alone or in combination with other drugs did not significantly decrease mortality in hospitalized patients with COVID-19 (odds ratio OR], 0.95; 95% CI, 0.72-1.26; p = 0.732; I(2) = 91.05).

PMC7505605; A critical analysis of the impacts of COVID-19 on the global economy and ecosystems and opportunities for circular economy strategies

Ibn-Mohammed,  T,  Mustapha, et al

Resour Conserv Recycl

Review Literature| Revue de littérature

 

The first 6 months of HIV-SARS-CoV-2 coinfection: outcomes for 6947 individuals

Johnston,  R

Curr Opin HIV AIDS

Review Literature| Revue de littérature

 

A Comprehensive Review on Sarilumab in COVID-19

Khiali,  S,  Rezagholizadeh, et al

Expert Opin Biol Ther

Review Literature| Revue de littérature

 

The Impact of the COVID-19 Pandemic on Maternal and Perinatal Health: A Scoping Review

Kotlar,  Bethany,  Gerson, et al

Research Square prepub

Review Literature| Revue de littérature

ScR: Pregnant women and mothers were not found to be at higher risk for COVID-19 than the general population, however they seem to face disproportionate adverse socio-economic consequences. High income and low- and middle-income countries alike faced significant struggles.

PMC7543751; Current progress on COVID-19 related to biosensing technologies: New opportunity for detection and monitoring of viruses

Laghrib,  F,  Saqrane, et al

Microchem J

Review Literature| Revue de littérature

 

MM-COVID: A Multilingual and Multidimensional Data Repository for CombatingCOVID-19 Fake New

Li,  Yichuan,  Jiang, et al

arXiv

Review Literature| Revue de littérature

 

Learning from COVID-19: a systems approach for public health governance

Liu,  Jieling,  Wu, et al

Research Square prepub

Review Literature| Revue de littérature

 

Spatio-temporal small area surveillance of the Covid-19 pandemics

Martinez-Beneito,  Miguel,  Mateu, et al

arXiv

Review Literature| Revue de littérature

 

PMC7642731; SARS-CoV-2 associated COVID-19 in Geriatric Population: A Brief Narrative Review

Mohamad Al-Zahrani,  J

Saudi J Biol Sci

Review Literature| Revue de littérature

 

COVID-19 during Pregnancy and Postpartum

Naidu Ms Pharm,  Sag D,  Clemens Dr, et al

J Diet Suppl

Review Literature| Revue de littérature

 

Development of Diagnostic Tests for Detection of SARS-CoV-2

Nguyen,  NNT,  McCarthy, et al

Diagnostics (Basel)

Review Literature| Revue de littérature

 

Vaccinomics and Adversomics in the Era of Precision Medicine: A Review Based on HBV, MMR, HPV, and COVID-19 Vaccines

Omersel,  J,  Karas Kuželički, et al

J Clin Med

Review Literature| Revue de littérature

 

Clinically suspected myocarditis in the course of SARS-CoV-2 infection: fact or fiction?

Ozieranski,  K,  Tyminska, et al

J Card Fail

Review Literature| Revue de littérature

 

An overview on COVID-19 pandemic: from discovery to treatment

Panati,  K,  Tatireddygari, et al

Infect Disord Drug Targets

Review Literature| Revue de littérature

 

Evidence-based point-of-care technology development during the COVID-19 pandemic

Parupudi,  T,  Panchagnula, et al

BioTechniques

Review Literature| Revue de littérature

 

PMC7534662; [Infection with SARS-CoV-2 in pregnancy. Update of Information and proposed care. CNGOF]

Peyronnet,  V,  Sibiude, et al

Gynecol Obstet Fertil Senol

Review Literature| Revue de littérature

 

Temporal summarization of scholarly paper collections by semantic change estimation: Case study of cord-19 dataset

Pozi,  MSM,  Jatowt, et al

 

Review Literature| Revue de littérature

 

Nanotechnology-based promising strategies for the management of COVID-19: current development and constraints

Rai,  M,  Bonde, et al

Expert Rev Anti Infect Ther

Review Literature| Revue de littérature

 

The pandemic that widens inequalities: Covid-19 and the education system in Quebec/Canada

Russo,  K,  Magnan, et al

Praxis Educativa

Review Literature| Revue de littérature

 

A review and content analysis of national apps for COVID-19 management using Mobile Application Rating Scale (MARS)

Salehinejad,  S,  Niakan Kalhori, et al

Inform Health Soc Care

Review Literature| Revue de littérature

 

Adaptation or Revolution: Telemental Health and Advanced Practice Psychiatric Nursing During COVID-19

Schroeder,  RA

J Am Psychiatr Nurses Assoc

Review Literature| Revue de littérature

 

"Not Soldiers but Fire-fighters" - Metaphors and Covid-19

Semino,  E

Health Commun

Review Literature| Revue de littérature

 

SARS-CoV-2 Infection in Cancer Patients: Effects on Disease Outcomes and Patient Prognosis

Seth,  G,  Sethi, et al

Cancers (Basel)

Review Literature| Revue de littérature

 

A Review on COVID-19 Mediated Impacts and Risk Mitigation Strategies for Dental Health Professionals

Sharma,  S,  Parolia, et al

Eur J Dent

Review Literature| Revue de littérature

 

The role of children in the transmission chain of SARS-CoV-2: a systematic review and update of current evidence

Suk,  JonathanE,  Vardavas, et al

medRxiv

Review Literature| Revue de littérature

SR: The literature appraised provides sufficient evidence that children can both be infected by and transmit SARS-CoV-2 in community, household and school settings. Transmission by children was most frequently documented in household settings, while examples of children as index cases in school settings were rare. Included studies suggested that school closures may help to reduce SARS-CoV-2 transmission, but the societal, economic, and educational impacts of prolonged school closures must be considered.

Convalescent Plasma against COVID-19: A Broad-Spectrum Therapeutic Approach for Emerging Infectious Diseases

Thijssen,  M,  Devos, et al

Microorganisms

Review Literature| Revue de littérature

 

Efficacy and safety of tocilizumab in COVID-19 patients: A living systematic review and meta-analysis

Tleyjeh,  IM,  Kashour, et al

Clin Microbiol Infect

Review Literature| Revue de littérature

SR-MA: vid MEDLINE(R) and Epub Ahead of Print, In-Process & Other Non-Indexed Citations and Daily, Ovid Embase, Ovid Cochrane Central Register of Controlled Trials, Ovid Cochrane Database of Systematic Reviews, Web of Science, Scopus up, preprint servers and Google up to October 8, 2020. Cumulative moderate certainty evidence shows that tocilizumab reduces the risk of mechanical ventilation in hospitalized COVID-19 patients. While RCTs showed that tocilizumab did not reduce short-term mortality, low certainty evidence from cohort studies suggests an association between tocilizumab and lower mortality. We did not observe a higher risk of infections or adverse events with tocilizumab use. This review will continuously evaluate the role of tocilizumab in COVID-19 treatment.

Infectious Complications in Lung Transplant Recipients

Trachuk,  P,  Bartash, et al

Lung

Review Literature| Revue de littérature

 

COVID19 Drug Repository: text-mining the literature in search of putative COVID19 therapeutics

Tworowski,  D,  Gorohovski, et al

Nucleic Acids Res

Review Literature| Revue de littérature

 

Antioxidants/antihypoxants: The missing puzzle piece in effective pathogenetic therapy for COVID-19

Voronina,  TA

Infektsionnye Bolezni

Review Literature| Revue de littérature

 

Factors Affecting the Mortality of Patients with COVID-19 Undergoing Surgery and the Safety of Surgical Team: A Systematic Review

Wang,  Kun,  Wu, et al

SSRN- Lancet prepublication

Review Literature| Revue de littérature

SR: We searched PubMed, Cochrane Library, Embase and a Chinese database with the search terms “COVID-19” or “SARS-CoV-2” and “Surgery” or “Operation” for all published articles on COVID-19 since the outbreak. The search was finalized on May 29th, 2020. COVID-19 patients, in particular whose with severe respiratory complications, may have high postoperative mortality. And, medical staff in close contact with infected patients are suggested to take high level PPE.

Inflammatory endotypes of CRSwNP and responses to COVID-19

Wang,  M,  Wang, et al

Curr Opin Allergy Clin Immunol

Review Literature| Revue de littérature

 

ACE2: Evidence of role as entry receptor for SARS-CoV-2 and implications in comorbidities

Zamorano Cuervo,  N,  Grandvaux, et al

Elife

Review Literature| Revue de littérature

 

Behavioral economics of substance use: Understanding and reducing harmful use during the COVID-19 pandemic

Acuff,  SF,  Tucker, et al

Exp Clin Psychopharmacol

Commentary/Editorial| Commentaire/Éditorial

 

PMC7543432; Upholding democracy in a global pandemic: the Israeli elections experience

Afek,  A,  Leshem, et al

J Travel Med

Commentary/Editorial| Commentaire/Éditorial

 

Building trust in journals and in peer review: need of the hour during the COVID-19 pandemic

Ahmed,  S,  Mohini

Rheumatol Int

Commentary/Editorial| Commentaire/Éditorial

 

Obesity and COVID-19: Time to Take Action

Akbas,  F,  Usta Atmaca, et al

Obes Facts

Commentary/Editorial| Commentaire/Éditorial

 

A new understanding of health and a healthy lifestyle: A holistic and existential-humanistic approach

Akimova,  EI,  Madzhuga, et al

Perspektivy Nauki i Obrazovania

Commentary/Editorial| Commentaire/Éditorial

 

The Enemy Within: Sudden-Onset Reversible Cardiogenic Shock With Biopsy-Proven Cardiac Myocyte Infection by Severe Acute Respiratory Syndrome Coronavirus 2

Albert,  CL,  Carmona-Rubio, et al

Circulation

Commentary/Editorial| Commentaire/Éditorial

 

PMC7197595; Throat-Wash Testing and Coronavirus Disease 2019: Should We Put Our Money Where Our Mouth Is?

Ali,  F,  Sweeney, et al

Clin Infect Dis

Commentary/Editorial| Commentaire/Éditorial

 

Agricultural market operations across the lockdown in J&K: An assessment

Ali,  J,  Khan, et al

Economic and Political Weekly

Commentary/Editorial| Commentaire/Éditorial

 

Biobanking in the COVID-19 Era and Beyond: Part 1. How Early Experiences Can Translate into Actionable Wisdom

Allocca,  CM,  Bledsoe, et al

Biopreserv Biobank

Commentary/Editorial| Commentaire/Éditorial

 

PMC7314256; Contact Tracing: Essential to the Public Health Response and Our Understanding of the Epidemiology of Coronavirus Disease 2019

Althoff,  KN,  Coburn, et al

Clin Infect Dis

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19, Moral Conflict, Distress, and Dying Alone

Anderson-Shaw,  L,  Zar, et al

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

Falling Consumption and Demand for Electricity in South Africa - A Blessing and a Curse

Andrade,  JVB,  Salles, et al

 

Commentary/Editorial| Commentaire/Éditorial

 

Az európai macskaegészségügyi tanácsadó testület irányelvei a SARS-CoV-2 és a macskák kapcsolatáról

Anna,  S

Magyar Allatorvosok Lapja

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19-associated coagulopathy and disseminated intravascular coagulation

Asakura,  H,  Ogawa, et al

Int J Hematol

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19 in Latin America: Symptoms, Morbidities and Gastrointestinal Manifestations

Ashktorab,  H,  Pizuorno, et al

Gastroenterology

Commentary/Editorial| Commentaire/Éditorial

 

The COVID-19 Pandemic: Theoretical and Practical Perspectives on Children, Women and Sex Trafficking

Asongu,  Simplice,  Usman, et al

SSRN- Lancet prepublication

Commentary/Editorial| Commentaire/Éditorial

 

Nutritional strategies for the rehabilitation of COVID-19 patients

Azzolino,  D,  Passarelli, et al

Eur J Clin Nutr

Commentary/Editorial| Commentaire/Éditorial

 

Mechanic Forces Promote Brain Endothelial Activation by SARS-CoV-2 Spike Protein

Babendreyer,  A,  Ludwig, et al

Stroke

Commentary/Editorial| Commentaire/Éditorial

 

State responsibility for the (Public) right to health and security in times of COVID pandemic: A European perspective

Bachmann,  SD,  Sanden, et al

Indonesian Journal of International and Comparative Law

Commentary/Editorial| Commentaire/Éditorial

 

Pooled testing for SARS-CoV-2 could provide the solution to UK's testing strategy

Ball,  J,  McNally, et al

BMJ

Commentary/Editorial| Commentaire/Éditorial

 

Efficacy of clinical evaluations for COVID-19 on the front line

Barsky,  LL,  Ebinger, et al

Int J Emerg Med

Commentary/Editorial| Commentaire/Éditorial

 

Can BCG vaccine protect against COVID-19 via trained immunity and tolerogenesis?

Basak,  P,  Sachdeva, et al

Bioessays

Commentary/Editorial| Commentaire/Éditorial

 

Are the users of Valved N95 masks 'innocent spreaders' of COVID-19?

Bawa,  A,  Wander, et al

Journal of Anaesthesiology Clinical Pharmacology

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19: Opportunities for interdisciplinary research to improve care for older people in Sweden

Baxter,  R,  Jemberie, et al

Scand J Public Health

Commentary/Editorial| Commentaire/Éditorial

 

Venenum, Virus, Fear, and Politics

Bekerman,  Z

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

Experiences of Physiotherapists in the Treatment of COVID-19 - A Narrative Description of Effects on the Staff

Best,  N,  Mohring, et al

Physikalische Medizin Rehabilitationsmedizin Kurortmedizin

Commentary/Editorial| Commentaire/Éditorial

 

Justice, Well-Being, and Civic Duty in the Age of a Pandemic: Why we all Need to Do our bit

Bester,  JC

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

Effect of inadvertent steroid use during COVID-19 lockdown in chronic illnesses in children

Bhalla,  K,  Verma, et al

Trop Doct

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We Need to Talk About Rationing: The Need to Normalize Discussion About Healthcare Rationing in a Post COVID-19 Era

Bhatia,  N

J Bioeth Inq

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Ethical Challenges in Clinical Research During the COVID-19 Pandemic

Bierer,  BE,  White, et al

J Bioeth Inq

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Social Estrangement and Psychological Distress before and during the COVID-19 Pandemic

Bierman,  A,  Schieman, et al

J Health Soc Behav

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The COVID-19 Pandemic and Perioperative Neuroscience

Black Square,  BS

J Neurosurg Anesthesiol

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PMC7337814; The long journey inside immigration detention centres in the USA

Bonfiglio,  G,  Rosal, et al

J Travel Med

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Responsibility of health professionals in screening for domestic violence during a COVID-19 pandemic

Bradley,  NL,  DiPasquale, et al

CMAJ

Commentary/Editorial| Commentaire/Éditorial

 

Love in the age of COVID-19

Breitbart,  W

Palliat Support Care

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Response to: Nutritional strategies for the rehabilitation of COVID-19 patients

Brugliera,  L,  Spina, et al

Eur J Clin Nutr

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Through the Storm: Automated Peritoneal Dialysis with Remote Patient Monitoring during COVID-19 Pandemic

Bunch,  A,  Ardila, et al

Blood Purif

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Heat risk exacerbation potential for neurology patients during the COVID-19 pandemic and related isolation

Buoite Stella,  A,  Filingeri, et al

Int J Biometeorol

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Interview: Mourning Is a Political Act Amid the Pandemic and Its Disparities (Republication)

Butler,  J,  Yancy, et al

J Bioeth Inq

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What Pfizer's landmark COVID vaccine results mean for the pandemic

Callaway,  E

Nature

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It Didn't Have to be This Way: Reflections on the Ethical Justification of the Running Ban in Northern Italy in Response to the 2020 COVID-19 Outbreak

Camporesi,  S

J Bioeth Inq

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Comparative effectiveness and safety of antiviral agents for patients with COVID-19: Protocol for a systematic review and individual-patient data network meta-analysis

Cao,  Y,  Shan, et al

PLoS One

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Insights into Disparities Observed with COVID-19

Carethers,  JM

J Intern Med

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Psychology and the road to net zero

Carmichael,  R,  Wainwright, et al

Clinical Psychology Forum

Commentary/Editorial| Commentaire/Éditorial

 

Of masks and men? gender, sex and protective measures during covid-19

Cassino,  D,  Besen-Cassino, et al

Politics and Gender

Commentary/Editorial| Commentaire/Éditorial

 

Proinflammatory IgG Fc structures in patients with severe COVID-19

Chakraborty,  S,  Gonzalez, et al

Nat Immunol

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LitCovid: an open database of COVID-19 literature

Chen,  Q,  Allot, et al

Nucleic Acids Res

Commentary/Editorial| Commentaire/Éditorial

 

The Brighton Collaboration standardized templates for collection of key information for benefit-risk assessment of vaccines by technology (BRAVATO; formerly V3SWG)

Chen,  RT,  Kochhar, et al

Vaccine

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Synergistic Disparities and Public Health Mitigation of COVID-19 in the Rural United States

Chillag,  KL,  Lee, et al

J Bioeth Inq

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Integrating Medical Students in Tele-Palliative Care

Chow,  B,  Rallis, et al

Am J Hosp Palliat Care

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MEDA 2020: The curative power of medical data

Cohen,  KB,  Gifu, et al

 

Commentary/Editorial| Commentaire/Éditorial

 

Why PB28 Could Be a Covid 2019 Game Changer?

Colabufo,  NA,  Leopoldo, et al

ACS Medicinal Chemistry Letters

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Persons with HIV and the COVID-19 Pandemic: A Viral Synergy of Biology and Sociology

Collins,  LF

Clin Infect Dis

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The COVID-19 pandemic as a catalyst for differentiated care models to end the HIV epidemic in the U.S. - applying lessons from high-burden settings

Collins,  LF,  Colasanti, et al

AIDS

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Social Justice for Public Health: The COVID-19 Response in Portugal

Cordeiro-Rodrigues,  L

J Bioeth Inq

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Surgery in Phase 3 of the COVID-19 pandemic in Northern Italy spoke hospitals. Comments to "Reply to Letter to the Editor: Surgery in the COVID-19 Phase 2 Italian scenario: lessons learned in Northern Italy spoke hospitals"

Costanzi,  A,  Mari, et al

J Trauma Acute Care Surg

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The role of senescent T cells in immunopathology

Covre,  LP,  De Maeyer, et al

Aging Cell

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PMC7605821; COVID-19: Impact on transport and mental health

Dam,  P,  Mandal, et al

J Transp Health

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Cardiovascular Imaging in COVID-19: Focus on safety, value, and clinical relevance

Dani,  SS,  Bagga, et al

Trends Cardiovasc Med

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Intrathecal Infusion Pumps Refill During COVID-19 Epidemic

Dario,  A

Neuromodulation

Commentary/Editorial| Commentaire/Éditorial

 

Heparin-Induced Thrombocytopenia in Severe COVID-19

Daviet,  F,  Guervilly, et al

Circulation

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Dysphagia presentation and management following coronavirus disease 2019: an acute care tertiary centre experience

Dawson,  C,  Capewell, et al

J Laryngol Otol

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Covid-19, et après?

de Jouvenel,  H

Futuribles: Analyse et Prospective

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Adding the Capacity for an Intensive Care Unit Dedicated to COVID 19, Preserving the Operational Capability of a French Golden Hour Offset Surgical Team in Sahel

de Lesquen,  H,  Bergez, et al

Mil Med

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Covid-19 in prisons: A study of habeas corpus decisions by the São Paulo court of justice

de Vasconcelos,  NP,  Machado, et al

Revista de Administracao Publica

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Convalescent plasma therapy in COVID 19: Every dark cloud has a silver lining

Deokar,  K,  Chawla, et al

Journal of Anaesthesiology Clinical Pharmacology

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Nanoconjugates-Based Stem Cell Therapy for the Management of COVID-19

Desai,  D,  Shende, et al

Stem Cell Rev Rep

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Healthcare Professional Standards in Pandemic Conditions: The Duty to Obtain Consent to Treatment

Devaney,  S,  Miola, et al

J Bioeth Inq

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[Ocular manifestations of viral diseases]

Devilliers,  MJ,  Ben Hadj Salah, et al

Rev Med Interne

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SARS-CoV-2 and interferon blockade

Diamond,  B,  Volpe, et al

Mol Med

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Toward equitable participatory design: Data feminism for CSCW amidst multiple pandemics

D'Ignazio,  C,  Graeff, et al

 

Commentary/Editorial| Commentaire/Éditorial

 

ORGAN DONATION AND TRANSPLANTATION DURING THE COVID-19 PANDEMIC: A SUMMARY OF THE SPANISH EXPERIENCE

Domínguez-Gil,  B,  Fernández-Ruiz, et al

Transplantation

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A narratology of dystopia during COVID-19: A discourse in social media

Dubi,  YB

NALANS: Journal of Narrative and Language Studies

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Endotracheal intubation in patients with COVID-19

Duggan,  LV,  Mastoras, et al

CMAJ

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Covid-19: Denmark to kill 17 million minks over mutation that could undermine vaccine effort

Dyer,  O

BMJ

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A Global Ecological Ethic for Human Health Resources

Eckenwiler,  LA

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

Ought Conscientious Refusals to Implement Reverse Triage Decisions be Accommodated?

Emmerich,  N

J Bioeth Inq

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The COVID-19 and bond spreads

Esteves,  R,  Sussman, et al

Economists' Voice

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Quarantine lessons: Limits and possibilities of teaching performance in times of social isolation

Ferreira,  LH,  Barbosa, et al

Praxis Educativa

Commentary/Editorial| Commentaire/Éditorial

 

Clinical Landscape of COVID-19 Testing: Difficult Choices

Gandhi,  Darshan,  Landage, et al

arXiv

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Emergence of Telehealth for anesthesiologists in COVID-19 - Boon for all!

Garg,  R,  Hoda, et al

Journal of Anaesthesiology Clinical Pharmacology

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Impact of COVID-19 Pandemic on the Role of Cardiac Sonographers

Garg,  VP,  Isath, et al

J Am Soc Echocardiogr

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Genomics in the era of COVID-19: ethical implications for clinical practice and public health

Geller,  G,  Duggal, et al

Genome Med

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Telling the Truth to Child Cancer Patients in COVID-19 Times

Gillam,  L,  Spriggs, et al

J Bioeth Inq

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The New Normal as Life Goes on Under COVID-19

Gilliland,  S,  Latham, et al

Semin Cardiothorac Vasc Anesth

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The endothelium as Achilles' heel in COVID-19 patients

Gladka,  MM,  Maack, et al

Cardiovasc Res

Commentary/Editorial| Commentaire/Éditorial

 

Nonlinear approximations to critical and relaxation processes

Gluzman,  S

Axioms

Commentary/Editorial| Commentaire/Éditorial

 

African American Faith Communities and Public Health: Working at the Intersections of COVID-19

Goldblum,  Peter,  Thompkins, et al

Research Square prepub

Commentary/Editorial| Commentaire/Éditorial

 

An online coronavirus analysis platform from the National Genomics Data Center

Gong,  Z,  Zhu, et al

Zool Res

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PMC7643096; Loneliness and the COVID-19 Pandemic: Implications for Intimate Partner Violence Survivors

Goodman,  LA,  Epstein, et al

J Fam Violence

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Addressing the Urgent Housing Needs of Vulnerable Women in the Era of COVID-19: The Los Angeles County Experience

Goodsmith,  N,  Ijadi-Maghsoodi, et al

Psychiatr Serv

Commentary/Editorial| Commentaire/Éditorial

 

The role of government’s ‘Owned Media’ in fostering cultural inclusion: a case study of the NSW Department of Education’s online and social media during COVID-19

Gorfinkel,  L,  Muscat, et al

Media International Australia

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COVID-19 from Wellington New Zealand

Gray,  B

J Bioeth Inq

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Covid-19: NHS England should manage test and trace system, says Independent SAGE

Griffin,  S

BMJ

Commentary/Editorial| Commentaire/Éditorial

 

Prediction Models for COVID-19 Need Further Improvements

Gu,  HQ,  Wang, et al

JAMA Intern Med

Commentary/Editorial| Commentaire/Éditorial

 

Prone position in ARDS patients: why, when, how and for whom

Guérin,  C,  Albert, et al

Intensive Care Med

Commentary/Editorial| Commentaire/Éditorial

 

The UK needs a sustainable strategy for COVID-19

Gurdasani,  Deepti,  Bear, et al

The Lancet

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PMC7499667; Will Severe Acute Respiratory Syndrome Coronavirus 2 Prevention Efforts Affect the Coming Influenza Season in the United States and Northern Hemisphere?

Hadler,  JL

J Infect Dis

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Infertility distress management in couples treated with assisted reproductive techniques (ART) in COVID-19 pandemic

Hamidi,  F,  Babapour, et al

Journal of Reproduction and Infertility

Commentary/Editorial| Commentaire/Éditorial

 

Controlled Trials Needed to Prove Efficacy and Safety of Convalescent Plasma Therapy in COVID-19

Hartog,  N,  Holsworth, et al

Ann Allergy Asthma Immunol

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A mind of care: Responding ethically to COVID-19

Hellsten,  L

Approaching Religion

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Heralding the Digitalization of Life in Post-Pandemic East Asian Societies

Ho,  CW,  Caals, et al

J Bioeth Inq

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Risk Communication Should be Explicit About Values. A Perspective on Early Communication During COVID-19

Hooker,  C,  Leask, et al

J Bioeth Inq

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Early triple antiviral therapy for COVID-19 - Authors' reply

Hung,  IF,  Yuen, et al

Lancet

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Antibody-Based Immunotherapeutic Strategies for COVID-19

Hussen,  J,  Kandeel, et al

Pathogens

Commentary/Editorial| Commentaire/Éditorial

 

Covid-19: Hospitals forced to suspend routine care amid second surge

Iacobucci,  G

BMJ

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19 lockdown effects on gender inequality

Inno,  L,  Rotundi, et al

Nature Astronomy

Commentary/Editorial| Commentaire/Éditorial

 

Could COVID-19 Become a Policy Tipping Point?

Inserro,  A

American Journal of Managed Care

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Protocolized approach to a COVID-19 parturient undergoing a cesarean section - A case report

Jain,  K,  Alen, et al

Journal of Anaesthesiology Clinical Pharmacology

Commentary/Editorial| Commentaire/Éditorial

 

Imagining and Preparing for the Aftermath of the COVID-19 Pandemic: A Justification for Taking Caring Responsibilities into Consideration when Allocating Scarce Resources

Jordens,  CFC

J Bioeth Inq

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Effect and Reach of Medical Articles Posted on Preprint Servers During the COVID-19 Pandemic

Jung,  YEG,  Sun, et al

JAMA Intern Med

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Ethics of Midwifery Care During the COVID-19 Pandemic

Kantrowitz-Gordon,  I

J Midwifery Womens Health

Commentary/Editorial| Commentaire/Éditorial

 

Even in a Pandemic, Sunlight is the Best Disinfectant: COVID-19 and Global Freedom of Expression

Karanicolas,  Michael

SSRN- Lancet prepublication

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Can immunological manipulation defeat SARS-CoV-2? Why G-CSF induced neutrophil expansion is worth a clinical trial: G-CSF treatment against COVID-19

Katayama,  H

Bioessays

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Correction to: Comparing Associations of State Reopening Strategies with COVID-19 Burden

Kaufman,  BG,  Whitaker, et al

J Gen Intern Med

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COVID-19: through the eyes through the front line, an international perspective

Kavanagh,  KT,  Pare, et al

Antimicrob Resist Infect Control

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Monitor for COVID-19 vaccine resistance evolution during clinical trials

Kennedy,  DA,  Read, et al

PLoS Biol

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Identification of risk factors for mortality in COVID-19 patients

Kim,  EY

Acute Crit Care

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So far, how effective were distancing measures during the COVID-19 pandemic?

Klein,  F

Deutsche medizinische Wochenschrift

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PMC7577681; Public support for development aid during the COVID-19 pandemic

Kobayashi,  Y,  Heinrich, et al

World Dev

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COVID-19 pandemic: The value of antibody testing for imaging facilities

Kohli,  A

Indian Journal of Radiology and Imaging

Commentary/Editorial| Commentaire/Éditorial

 

The impact of Stage 3 COVID-19 lockdown on psychiatric presentations at a regional Victorian emergency department

Kratochvil,  D,  Hill, et al

Australas Psychiatry

Commentary/Editorial| Commentaire/Éditorial

 

Smell impairment in COVID-19 patients: Mechanisms and clinical significance

Kryukov,  AI,  Kazakova, et al

Vestnik otorinolaringologii

Commentary/Editorial| Commentaire/Éditorial

 

An Analysis of K-12 School Reopening and Its’ Impact on Teachers

Lambert,  JA,  Trott, et al

Journal of Primary Care and Community Health

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Major rise of a chronic lymphoid leukemia clone during the course of COVID-19

Largeaud,  L,  Ribes, et al

Int J Lab Hematol

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Is G-CSF Dangerous in COVID-19: Why Not Use GM-CSF?

Lazarus,  HM,  Gale, et al

Acta Haematol

Commentary/Editorial| Commentaire/Éditorial

 

PMC7566764; Post-pandemic transformations: How and why COVID-19 requires us to rethink development

Leach,  M,  MacGregor, et al

World Dev

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Coagulopathy associated with COVID-19

Lee,  SG,  Fralick, et al

CMAJ

Commentary/Editorial| Commentaire/Éditorial

 

Toward standardization in biotechnology platforms to support smart manufacturing

Lin-Gibson,  S,  Srinivasan, et al

Smart and Sustainable Manufacturing Systems

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Beyond Duty: Medical "Heroes" and the COVID-19 Pandemic

Lipworth,  W

J Bioeth Inq

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Corrigendum to: Clinical and Epidemiological Features of 46 Children <1 Year Old With Coronavirus Disease 2019 in Wuhan, China: A Descriptive Study

Liu,  X,  Tang, et al

J Infect Dis

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Clinical Health Care during the COVID-19 Pandemic

Luigetti,  M,  Frisullo, et al

J Clin Med

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Addressing the mental health needs of children/adolescents, families, and ourselves during our unprecedented COVID-19 times

Lusk,  P

J Child Adolesc Psychiatr Nurs

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Ultraprocessed Food: Addictive, Toxic, and Ready for Regulation

Lustig,  RH

Nutrients

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PMC7643524; From the Front Lines of COVID-19 at HSS: An Oral History

MacKenzie,  CR,  Jacobson, et al

HSS J

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Covid-19: Vaccine candidate may be more than 90% effective, interim results indicate

Mahase,  E

BMJ

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Interpretation of laboratory tests for prevention of the SARS-CoV-2 transmission

Masui,  K

J Anesth

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State international responsibility for transnational pandemics the case of covid-19 and the People’s Republic of China

Mazzuoli,  VO

Indonesian Journal of International and Comparative Law

Commentary/Editorial| Commentaire/Éditorial

 

Unveiling the silent threat among us: leveraging health information technology in the search for asymptomatic COVID 19 healthcare workers

McKeeby,  JW,  Siwy, et al

J Am Med Inform Assoc

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Covid-19 vaccines: Should we allow human challenge studies to infect healthy volunteers with SARS-CoV-2?

McPartlin,  SO,  Morrison, et al

BMJ

Commentary/Editorial| Commentaire/Éditorial

 

Implications of Early Health Care Spending Reductions for Expected Spending as the COVID-19 Pandemic Evolves

McWilliams,  JM,  Mehrotra, et al

JAMA Intern Med

Commentary/Editorial| Commentaire/Éditorial

 

Standards of Care in Crisis: ST-Segment-Elevation Myocardial Infarction Management in COVID-19

Mihatov,  N,  Kirtane, et al

Circ Cardiovasc Interv

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Educational transformations in pandemic times: From social confinement to curriculum isolation

Morgado,  JC,  Sousa, et al

Praxis Educativa

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Adolescenti in tempo di Covid-19: Dalla movida alla responsabilità

Musso,  P,  Cassibba, et al

Psicologia Clinica dello Sviluppo

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19 during Pregnancy and Postpartum: Antiviral Spectrum of Maternal Lactoferrin in Fetal and Neonatal Defense

Naidu,  SAG,  Clemens, et al

J Diet Suppl

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Afterthoughts from an Unexpected Morbidity under COVID-19 pandemic

Navarro,  F,  Jarry, et al

J Invest Surg

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Breakthrough healthcare technologies in the COVID-19 era: a unique opportunity for cardiovascular practitioners and patients

Nudi,  R,  Campagna, et al

Panminerva Med

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Harm reduction in the time of COVID-19: Case study of homelessness and drug use in Dublin, Ireland

O'Carroll,  A,  Duffin, et al

Int J Drug Policy

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Established Cardiovascular Biomarkers Provide Limited Prognostic Information in Unselected Patients Hospitalized With COVID-19

Omland,  T,  Prebensen, et al

Circulation

Commentary/Editorial| Commentaire/Éditorial

 

Preserving Bodily Integrity of Deceased Patients From the Novel SARS-CoV-2 Pandemic in West Africa

Omonzejele,  PF

J Bioeth Inq

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What Triage Issues Reveal: Ethics in the COVID-19 Pandemic in Italy and France

Orfali,  K

J Bioeth Inq

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COVID-19 testing of pregnant women in Japan

Orisaka,  M,  Kawamura, et al

J Obstet Gynaecol Res

Commentary/Editorial| Commentaire/Éditorial

 

Incorporate Language in Medical Education to Address Structural Barriers to Care During the COVID-19 Pandemic and Beyond

Ortega,  P,  Shin, et al

Acad Med

Commentary/Editorial| Commentaire/Éditorial

 

Plantation Politics, Paranoia, and Public Health on the Frontlines of America's COVID-19 Response

Oyarzun,  Y

Med Anthropol Q

Commentary/Editorial| Commentaire/Éditorial

 

Open Burn Pit Exposure and Concern About the COVID-19 Pandemic

Padala,  KP,  Padala, et al

Prim Care Companion CNS Disord

Commentary/Editorial| Commentaire/Éditorial

 

Biosafety Guidelines for COVID-19 Specimens in Biobanks

Parichehreh-Dizaji,  S,  Haghpanah, et al

Biopreserv Biobank

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The emergence of english as a lingua digital within chaos/Complexity theory framework

Peker,  H,  Akkaya, et al

NALANS: Journal of Narrative and Language Studies

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[COVID-19 and the ethical issues of justice and rationing in health care, with particular regard to the Italian experience]

Péter,  OM

Orv Hetil

Commentary/Editorial| Commentaire/Éditorial

 

Unproctored Online Summative Assessments During the COVID-19 Pandemic: A Plea for Transparency

Prakash,  ES,  Kacsoh, et al

Acad Med

Commentary/Editorial| Commentaire/Éditorial

 

Dance and the COVID-19 crisis

Pratt,  D

Dancing Times

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19 and abortion right

Rashidpouraie,  R,  Sharifi, et al

Obstet Gynecol Sci

Commentary/Editorial| Commentaire/Éditorial

 

Special Section Involvement of lipids in the occurrence of COVID-19

Rioux,  V,  Record, et al

Biochimie

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Misguided Use of Hydroxychloroquine for COVID-19: The Infusion of Politics Into Science

Saag,  MS

JAMA

Commentary/Editorial| Commentaire/Éditorial

 

Does lack of vertical transmission of COVID-19 guarantee the health of the fetus or neonate in infected mothers?

Sadeghi,  MR

Journal of Reproduction and Infertility

Commentary/Editorial| Commentaire/Éditorial

 

A Critique of New Zealand’s Exclusive Approach to Intercultural Education

Salahshour,  N

New Zealand Journal of Educational Studies

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Good reasons to vaccinate: mandatory or payment for risk?

Savulescu,  J

J Med Ethics

Commentary/Editorial| Commentaire/Éditorial

 

Herausforderungen: Für den lehr- und forschungsbetrieb im aaaschinebäu aufgrund von sars-COV-2

Schmitz,  K

O+P Fluidtechnik

Commentary/Editorial| Commentaire/Éditorial

 

Patient satisfaction with nurse-led end of treatment telephone consultation for breast cancer during COVID-19 pandemic

Schuster-Bruce,  A,  Middleton, et al

Breast J

Commentary/Editorial| Commentaire/Éditorial

 

Using Persuasion Science to Improve COVID-19 Contact Tracing

Sciamanna,  C,  Du, et al

Am J Infect Control

Commentary/Editorial| Commentaire/Éditorial

 

Risk of Severe COVID-19 Among Workers and Their Household Members

Selden,  TM,  Berdahl, et al

JAMA Intern Med

Commentary/Editorial| Commentaire/Éditorial

 

The City of the Public Space: Drop Dead?

Semi,  G

Polis (Italy)

Commentary/Editorial| Commentaire/Éditorial

 

Does use of propofol aggravate the inflammatory markers and cause propofol infusion syndrome (PRIS) in intubated cases of severe COVID-19 infections?

Sharma,  B

J Med Virol

Commentary/Editorial| Commentaire/Éditorial

 

Cardiac complications of COVID-19: the concealed realities

Shaw,  PD,  Rao, et al

Infect Dis (Lond)

Commentary/Editorial| Commentaire/Éditorial

 

What Matters? Palliative Care, Ethics, and the COVID-19 Pandemic

Sheahan,  L,  Brennan, et al

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

Ethnography in calamitous times

Shun-Ching Chan,  C,  Joosse, et al

Etnografia e Ricerca Qualitativa

Commentary/Editorial| Commentaire/Éditorial

 

Author Correction: In vitro virucidal activity of Echinaforce(®), an Echinacea purpurea preparation, against coronaviruses, including common cold coronavirus 229E and SARS-CoV-2

Signer,  J,  Jonsdottir, et al

Virol J

Commentary/Editorial| Commentaire/Éditorial

 

US election: Biden announces covid-19 task force, promising "compassion, empathy, and concern"

Silberner,  J

BMJ

Commentary/Editorial| Commentaire/Éditorial

 

The New Normal for Bioplastics Amid the COVID-19 Pandemic

Singh,  R

Industrial Biotechnology

Commentary/Editorial| Commentaire/Éditorial

 

Psychiatric disorders and risk of infections: early lessons from COVID-19

Smith,  MeghanL,  Gradus, et al

The Lancet Healthy Longevity

Commentary/Editorial| Commentaire/Éditorial

 

Ethnography and the new normal. Observational studies, analytic orientations, and practical ethics

Smith,  RJ,  Ablitt, et al

Etnografia e Ricerca Qualitativa

Commentary/Editorial| Commentaire/Éditorial

 

The Left Reflects on the Global Pandemic and Speaks to Transform!

Spivak,  GC

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

Tele-Preanesthetic check-ups (TelePAC) during COVID-19: Apprehensions and possibilities

Srivastava,  D,  Solanki, et al

Journal of Anaesthesiology Clinical Pharmacology

Commentary/Editorial| Commentaire/Éditorial

 

Mental Capacity Assessments for COVID-19 Patients: Emergency Admissions and the CARD Approach

Stewart,  C,  Biegler, et al

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19 and Australian Prisons: Human Rights, Risks, and Responses

Stewart,  C,  Tomossy, et al

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

ILCOR's revised Covid-19 defibrillation recommendation requires a new approach to training

Stewart,  JA

Scand J Trauma Resusc Emerg Med

Commentary/Editorial| Commentaire/Éditorial

 

Facing the Ethical Challenges: Consumer Involvement in COVID-19 Pandemic Research

Straiton,  N,  McKenzie, et al

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

Survey of COVID-19 dynamics across US states

Takagi,  H

J Med Virol

Commentary/Editorial| Commentaire/Éditorial

 

Care home staff and residents on the pandemic front line

The Lancet Healthy,  Longevity

The Lancet Healthy Longevity

Commentary/Editorial| Commentaire/Éditorial

 

Potential Association of Mast Cells with COVID-19

Theoharides,  TC

Ann Allergy Asthma Immunol

Commentary/Editorial| Commentaire/Éditorial

 

Ethical Considerations for Restrictive and Physical Distancing Measures in Brazil During COVID-19: Facilitators and Barriers

Thomé,  BC,  Matta, et al

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

The criteria used to justify endotracheal intubation of patients with COVID-19 are worrisome

Tobin,  MJ

Can J Anaesth

Commentary/Editorial| Commentaire/Éditorial

 

Scientists relieved as Joe Biden wins tight US presidential election

Tollefson,  J

Nature

Commentary/Editorial| Commentaire/Éditorial

 

Surgery in crisis in the era of COVID-19: transformational changes in sight

Urbach,  DR,  Martin, et al

CMAJ

Commentary/Editorial| Commentaire/Éditorial

 

Potential Influence of Olfactory, Gustatory, and Pharyngolaryngeal Sensory Dysfunctions on Swallowing Physiology in COVID-19

Vergara,  J,  Lirani-Silva, et al

Otolaryngol Head Neck Surg

Commentary/Editorial| Commentaire/Éditorial

 

Sports participation of patients with haemophilia in the COVID-19 era: The Dutch experience

Versloot,  O,  van der Net, et al

Haemophilia

Commentary/Editorial| Commentaire/Éditorial

 

ChAdOx1 nCoV-19 vaccine for SARS-CoV-2 - Authors' reply

Voysey,  M,  Pollard, et al

Lancet

Commentary/Editorial| Commentaire/Éditorial

 

The future of rehabilitation in the United Kingdom National Health Service: Using the COVID-19 crisis to promote change, increasing efficiency and effectiveness

Wade,  DT

Clin Rehabil

Commentary/Editorial| Commentaire/Éditorial

 

Mental health during COVID-19 in Qatar

Wadoo,  O,  Latoo, et al

General Psychiatry

Commentary/Editorial| Commentaire/Éditorial

 

A juggling act – being a parent/prospective parent and a clinician during covid-19

Weiner,  B,  Phillips, et al

Clinical Psychology Forum

Commentary/Editorial| Commentaire/Éditorial

 

PMC7543444; BCG as an adjunct or alternative vaccine to prevent COVID-19?

Weng,  CH,  Chan, et al

J Travel Med

Commentary/Editorial| Commentaire/Éditorial

 

The Way We Live Now

Wiltshire,  J

J Bioeth Inq

Commentary/Editorial| Commentaire/Éditorial

 

In reply: The criteria used to justify endotracheal intubation of patients with COVID-19 are worrisome

Wong,  DJN,  Ahmad, et al

Can J Anaesth

Commentary/Editorial| Commentaire/Éditorial

 

The United States' Reckoning with Racism during the COVID-19 pandemic: What can we learn and do as Allergist-Immunologists?

Wright,  LS,  Louisias, et al

J Allergy Clin Immunol

Commentary/Editorial| Commentaire/Éditorial

 

Correction to: Novel and potent inhibitors targeting DHODH are broad-spectrum antivirals against RNA viruses including newly-emerged coronavirus SARS-CoV-2

Xiong,  R,  Zhang, et al

Protein Cell

Commentary/Editorial| Commentaire/Éditorial

 

Double-surgical-mask-with-slit and COVID-19 prevention

Yasri,  S,  Wiwanitkit, et al

Endoscopy

Commentary/Editorial| Commentaire/Éditorial

 

A moment for reflection. Ethical aspects in the pandemic SARS-CoV-2/COVID-19 in our clinical practice

Yepes-Temiño,  MJ,  Callejas González, et al

Rev Esp Anestesiol Reanim

Commentary/Editorial| Commentaire/Éditorial

 

The outcome of COVID-19 in patients with hematological malignancy

Yigenoglu,  TN,  Bascı, et al

Journal of medical virology

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19 and psychiatry: can electronic medical records provide the answers?

Yolken,  Robert

The Lancet Psychiatry

Commentary/Editorial| Commentaire/Éditorial

 

Working with bipolar disorder during the covid-19 pandemic: Both crisis and opportunity

Youngstrom,  EA,  Hinshaw, et al

WikiJournal of Medicine

Commentary/Editorial| Commentaire/Éditorial

 

PMC7582040; Data on compounding lopinavir and ritonavir suspension for non-cooperative COVID-19 patients

Zanon,  D,  Musazzi, et al

Data Brief

Commentary/Editorial| Commentaire/Éditorial

 

The family-state concept of the Chinese. Two facts based on observations of the micro-media during the Covid-19 pandemic

Zhou,  Y

Etnografia e Ricerca Qualitativa

Commentary/Editorial| Commentaire/Éditorial

 

COVID-19 and Vaccination of Children and Adolescents: Prospects and Challenges

Zimet,  GD,  Silverman, et al

J Pediatr

Commentary/Editorial| Commentaire/Éditorial

 

Pandemic break: Education and life

Zordan,  P,  Almeida, et al

Praxis Educativa

Commentary/Editorial| Commentaire/Éditorial

 

Corrigendum: Using Machine Learning to Generate Novel Hypotheses: Increasing Optimism About COVID-19 Makes People Less Willing to Justify Unethical Behaviors

 

Psychol Sci

Commentary/Editorial| Commentaire/Éditorial

 

Correction: Patient Trajectories Among Persons Hospitalized for COVID-19

 

Ann Intern Med

Commentary/Editorial| Commentaire/Éditorial

 

COVID research updates: Uninfected children have antibodies to the coronavirus

 

Nature

Commentary/Editorial| Commentaire/Éditorial

 

Covid-19: Esquisse de scénarios (2021-2022)

 

Futuribles: Analyse et Prospective

Commentary/Editorial| Commentaire/Éditorial

 

 


 

Appendix: Process and definitions. 

 

A daily search for new publications is conducted in PubMed, Scopus, BioRxiv and MedRxiv, SSRN, Research Square, arXiv for all publications related to COVID-19 disease or SARS-CoV-2 using the search terms (COVID-19 OR SARS-CoV-2 OR "novel CoV" OR "novel coronavirus" OR nCoV) adapted to each database.  The capture is cross-referenced with publication announcements on the COVID-19 dashboards set up by a number of publishers and google.  Publishers include Lancet, Elsevier, The New England Journal of Medicine, BMJ, Wiley, Springer Nature, ChinaCDCweekly. Additionally the database is cross-referenced with other literature scans and activities by collaborators.  Members of the Emerging Sciences group examine and shorten the abstract or develop 1 -2 point summaries of each publication. Please email Lisa Waddell for additional information: Lisa.Waddell@canada.ca.  References are compiled in a reworks database that has citations since the beginning of the outbreak.  All references can be accessed at this link and by the categories listed below.  The daily scan has also been compiled in an excel sheet and copies can be provided upon request or accessed here.

 

Category Definitions:

Modelling/ prediction: Predictive modeling is a process that uses data mining and probability to forecast outcomes. Each model is made up of a number of predictors, which are variables that are likely to influence future results.

Epidemiology: the branch of medicine which deals with the incidence, distribution, and possible control of diseases and other factors relating to health. Includes Ro, attack rates, case number doubling time, case fatality rate, serial interval, clinical attack rate, asymptomatic fraction, proportion of asymptomatic and infective*

Transmission: The passage of a pathogen causing communicable disease from an infected host to an uninfected host via direct or indirect routes.

Clinical data of cases: Includes clinical parameters such as incubation period, latent period, period of communicability, duration of illness, duration of hospitalization, host risk factors, as well as clinical profiles of patients; presenting symptoms, symptoms over course of illness, comorbidities.* 

Long-term Sequelae: Data or Studies that describe the long-term effects of COVID-19 from lingering symptoms to severe conditions that persiste after acute infection has resolved.

Mental Health: All studies on mental health impacts or consequences of the pandemic for both general population and healthcare workers. 

Surveillance: Public health surveillance is the continuous, systematic collection, analysis and interpretation of health-related data.  Surveillance data will likely be number of cases suspected/confirmed, number of deaths, number recovered. *

Coronavirology: All research relating to the virus; its characteristics, genetic make-up, phylogenetic analyses  

Diagnostics / Pathogen detection:  All studies on identification of the virus; culture, PCR, antibody/antigen tests etc.

Therapeutics: Studies of substances that may be used to treat infected hosts including passive immunization products.

Vaccine Research:  Studies of vaccine candidates to prevent infection with 2019-nCoV including clinical trials.

Public Health Priorities: These citations will focus on what the current research priorities are and/or where knowledge gaps exist.

Public Health interventions*: Any study evaluating how effective a public health intervention is or maybe (in the case of a predictive model).

Public Health response: Articles in this category include: COVID-19 AND substance abuse, domestic violence, social media analysis, adherence to public health measures and knowledge, attitudes and beliefs studies related to the pandemic.  

Infection Prevention and Control/ Prévention et contrôle des infections (IPAC/PCI): Any research on the effectiveness of IPC interventions should also be tagged as IPC

Health care Response: This foci would include a description of activities to deal with 2019-nCoV cases including, but not limited to:  set up of a special emergency multi-disciplinary intensive care team; Bed and medical equipment preparation/ stock piling supplies; Education and training of staff; Early case recognition and classification of disease severity.

Economics: papers discussing/ forecasting the economics of COVID-19 pandemic.

Immunology: the study of the immune system and includes serology studies in conjunction with other foci (e.g. epidemiology or diagnostics)

Animal Model: An animal model is a living, non-human, often genetic-engineered animal used during the research and investigation of human disease, for the purpose of better understanding the disease process without the added risk of harming an actual human.

Zoonotic: all literature discussing the transmission to and from or occurrence of naturally acquired SARS-COV-2 infection in animals. 

Review Literature:  All articles that summarize the published literature can be tagged as a review.  This includes systematic review, meta-analysis, scoping review, overviews, umbrella reviews*

Commentary/Editorial: For commentaries, editorials, letters to the editor, other types of opinion pieces where there is no new data collected by the author or analysis conducted by the author, please tag these within the commentary category.

News articles that have not scientific information.

*Lists are not exhaustive

Annexe: Processus et définitions. 

 

Une recherche quotidienne des nouvelles publications est effectuée dans PubMed, Scopus, BioRxiv and MedRxiv, SSRN, Research Square, arXiv pour toutes les publications relatives à la maladie COVID-19 ou au SRAS-CoV-2 en utilisant les termes de recherche (COVID-19 OU SARS-CoV-2 OU « novel CoV » OU « novel coronavirus » OU nCoV).  La saisie renvoie à des annonces de publication sur les tableaux de bord du nCoV mis en place par un certain nombre d'éditeurs et par Google.  Parmi les éditeurs figurent Lancet, Elsevier, The New England Journal of Medicine, BMJ, Wiley, Springer Nature, ChinaCDCweekly.  En outre, la base de données renvoie à d'autres survols de publications, et à des activités des collaborateurs.  Les membres du groupe scientifique émergent préparent des résumés en 1 ou 2 points de chaque publication. Pour en savoir plus, veuillez envoyer un courriel à Lisa Waddell au : Lisa.Waddell@canada.ca.  Les références sont compilées dans une base de données Refworks qui contient des citations depuis le début de l'épidémie.  Toutes les références sont accessibles à partir de ce lien et par les catégories énumérées ci-dessous. L'analyse quotidienne a également été compilée dans une feuille Excel et des copies peuvent être fournies sur demande ou consultées ici.

 

Définitions des catégories :

Modélisation / prédiction : La modélisation prédictive est un processus qui utilise l'exploration de données et la probabilité pour prévoir les résultats. Chaque modèle est composé de plusieurs prédicteurs, qui sont des variables susceptibles d'influencer les résultats futurs.

Épidémiologie : Branche de la médecine qui traite de l'incidence, de la répartition et du contrôle éventuel des maladies et d'autres facteurs liés à la santé. Comprend le taux de reproduction de base (Ro), les taux d'attaque, le temps de doublement du nombre de cas, le taux de létalité, l'intervalle sériel, le taux d'attaque clinique, la fraction asymptomatique, la proportion de cas asymptomatiques et infectieux*.

Transmission : Passage d'un agent pathogène causant une maladie transmissible d'un hôte infecté à un hôte non infecté par des voies directes ou indirectes.

Données cliniques des cas : Comprend les paramètres cliniques tels que la période d'incubation, la période de latence, la période de contagiosité, la durée de la maladie, la durée de l'hospitalisation, les facteurs de risque de l'hôte, ainsi que les profils cliniques des patients; les symptômes présentés, les symptômes au cours de la maladie, les séquelles, les comorbidités.* 

Séquelles à long terme: Données ou études décrivant les effets à long terme du COVID-19, des symptômes persistants aux affections graves qui persistent après la résolution de l'infection aiguë.

Santé mentale: Toutes les études sur les impacts ou les conséquences de la pandémie sur la santé mentale tant pour la population générale que pour les travailleurs de la santé.

Surveillance : La surveillance de la santé publique est la collecte, l'analyse et l'interprétation continues et systématiques de données relatives à la santé.  Les données de surveillance concerneront probablement le nombre de cas suspects / confirmés, le nombre de décès, le nombre de personnes guéries. *

Coronavirologie : Toutes les recherches relatives au virus, ses caractéristiques, sa constitution génétique et les analyses phylogénétiques.  

Diagnostics / Détection d'agents pathogènes : Toutes les études sur l'identification du virus : culture, PCR, tests de dépistage d'anticorps ou d’antigènes, etc.

Thérapeutique : Étude des substances pouvant être utilisées pour traiter les hôtes infectés, y compris les produits d'immunisation passive.

Recherche sur les vaccins : Études des candidats à la vaccination pour prévenir l'infection par le 2019-nCoV, y compris des essais cliniques.

Priorités de santé publique : Ces citations porteront sur les priorités actuelles de recherche et/ou sur les lacunes dans les connaissances.

Interventions de santé publique* : Toute étude évaluant l'efficacité (réelle ou possible) d'une intervention de santé publique (dans le cas d'un modèle prédictif).

Réponse de la santé publique : Les articles de cette catégorie comprennent: COVID-19 ET toxicomanie, violence domestique, analyse des médias sociaux, respect des mesures de santé publique et études sur les connaissances, les attitudes et les croyances liées à la pandémie.

Prévention et contrôle des infections/Infection Prevention and Control (PCI/IPAC) : Les recherches sur l'efficacité des interventions en PCI doivent également être marquées comme PCI.

Réponse des soins de santé : Ce point comprendrait une description des activités pour traiter les cas de 2019-nCoV, notamment :  mise en place d'une équipe multidisciplinaire spéciale de soins intensifs d'urgence; préparation des lits et des équipements médicaux / stockage des fournitures; sensibilisation et formation du personnel; reconnaissance précoce des cas et classification de la gravité de la maladie.

Immunologie : l'étude du système immunitaire et comprend des études sérologiques en conjonction avec d'autres foyers (p. ex. épidémiologie ou diagnostic)

Modèle animal: Un modèle animal est un animal vivant, non humain, souvent génétiquement modifié, utilisé lors de la recherche et de l'investigation des maladies humaines, dans le but de mieux comprendre le processus de la maladie sans risque supplémentaire de nuire à un humain réel.

Zoonotic: all literature discussing the transmission to and from or occurrence of naturally acquired SARS-COV-2 infection in animals. 

Économie: documents discutant / prévoyant l'économie de la pandémie de COVID-19

Revue de la documentation :  Tous les articles qui résument les documents publiés peuvent être marqués comme une revue.  Cela comprend les revues systématiques, les méta-analyses, les études de la portée, les aperçus, les examens généraux*.

Commentaires/Éditorial : Pour les commentaires, éditoriaux, lettres à la rédaction, autres types d'articles d'opinion pour lesquels aucune nouvelle donnée n'est collectée ou aucune analyse n'est effectuée par l'auteur, veuillez les marquer dans la catégorie des commentaires.

journaux Articles de presse qui n'ont pas d'informations scientifiques.

* Les listes ne sont pas exhaustives