Background The emerging SARS-CoV-2 variant of concern (VOC) B. 1.6. 17.2 (Delta)
quickly displaced the B. 1.1. 7 (Alpha) and is associated with increases in COVID-19 cases …

Background The detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) RNA by reverse-transcription polymerase chain reaction (PCR) does not necessarily …

The within-host viral kinetics of SARS-CoV-2 infection and how they relate to a person's
infectiousness are not well understood. This limits our ability to quantify the impact of …

SARS-CoV-2 is a human pathogen that causes infection in both the upper respiratory tract
(URT) and the lower respiratory tract (LRT). The viral kinetics of SARS-CoV-2 infection and …

Abstract Background An Israeli national taskforce performed a multi-center clinical and
analytical validation of seven serology assays to determine their utility and limitations for …

SARS-CoV-2 variants and considerations of inferring causality on disease severity - The Lancet
Infectious Diseases Skip to Main Content Advertisement The Lancet Infectious Diseases …

Individuals can test positive for SARS-CoV-2 by real-time polymerase chain reaction (RT-
PCR) after no longer being infectious.-Positive SARS-CoV-2 antigen-based testing exhibits …

A current model of the coronavirus disease 2019 (COVID‐19) epidemic 1 appears to have
differing degrees of projected total deaths in various areas of the United States despite the …

INTRODUCTION Genome sequencing at an unprecedented scale during the severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic is helping to track spread of …

Slovakia conducted multiple rounds of population-wide rapid antigen testing for severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in late 2020, combined with a …