Results 31 to 40 of about 4,658,313 (257)
Exploring Diversity of COVID‑19 Based on Substitution Distance.
The number of COVID-19 infections worldwide has reached 10 million. COVID‑19 caused by SARS-CoV-2 is more contagious than SARS-CoV-1. There is a dispute about the origin of COVID-19. Study results showed that all SARS-CoV-2 sequences around the world share a common ancestor towards the end of 2019.Virus sequences from COVID-19 samples at the early time
Chen,Yi-Hau, Wang,Hsiuying
openaire +3 more sources
Moving from rhetoric to action: how Africa can use scientific evidence to halt the COVID-19 pandemic
The ongoing pandemic of the coronavirus disease 2019 has spread rapidly to all countries of the world. Africa is particularly predisposed to an escalation of the pandemic and its negative impact given its weak economy and health systems.
Olushayo Oluseun Olu +5 more
doaj +1 more source
A Randomized Placebo-Controlled Trial of Sarilumab in Hospitalized Patients with Covid-19
BACKGROUND: Sarilumab (anti-interleukin-6 receptor-α monoclonal antibody) may attenuate the inflammatory response in Covid-19. METHODS: We performed an adaptive, phase 2/3, randomized, double-blind, placebo-controlled trial of intravenous sarilumab 200 ...
DiCioccio, A. Thomas +39 more
core +1 more source
In this letter, we briefly describe how we selected and implemented the quality criteria checklist (QCC) as a critical appraisal tool in rapid systematic reviews conducted to inform public health advice, guidance and policy during the COVID-19 pandemic ...
Daphne Duval +5 more
doaj +1 more source
The COVID-19 Vaccine Safety Research Center: a cornerstone for strengthening safety evidence for COVID-19 vaccination in the Republic of Korea [PDF]
The COVID-19 Vaccine Safety Research Committee (CoVaSC) was established in November 2021 to address the growing need for independent, in-depth scientific evidence on adverse events (AEs) following coronavirus disease 2019 (COVID-19) vaccination.
Na-Young Jeong +14 more
doaj +1 more source
Evaluation of self-administered antigen testing in a college setting
Background The objective of our investigation was to better understand barriers to implementation of self-administered antigen screening testing for SARS-CoV-2 at institutions of higher education (IHE).
Sarah C. Tinker +21 more
doaj +1 more source
Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), first emerged in Wuhan, China, and has spread globally to most countries. In Japan, the first COVID-19 patient was identified on January 15, 2020.
Tokio Hoshina +8 more
doaj +1 more source
Background: The development of vaccines against COVID-19 has greatly altered the natural course of this infection, reducing the disease’s severity and patients’ hospitalization. However, hesitancy against vaccination remains an obstacle in the attempt to
Petros Ioannou +9 more
doaj +1 more source
Background Antigen tests for SARS-CoV-2 offer advantages over nucleic acid amplification tests (NAATs, such as RT-PCR), including lower cost and rapid return of results, but show reduced sensitivity.
Phillip P. Salvatore +6 more
doaj +1 more source
BACKGROUND: The effectiveness of fluvoxamine to shorten symptom duration or prevent hospitalization among outpatients in the US with mild to moderate symptomatic coronavirus disease 2019 (COVID-19) is unclear. DESIGN: ACTIV-6 is an ongoing, decentralized,
Boulware, David R. +27 more
core +1 more source

