We assessed the relationship between antigen and reverse transcription PCR (RT-PCR) test
positivity and successful virus isolation. We found that antigen test results were more …

Background Individuals can test positive for severe acute respiratory syndrome coronavirus
2 (SARS-CoV-2) by molecular assays following the resolution of their clinical disease …

Patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can be
diagnosed by PCR during acute infection or later in their clinical course by detection of virus …

Objective To define the relationship of SARS-CoV-2 antigen, viral load determined by RT-
qPCR, and viral culture detection. Presumptively, viral culture can provide a surrogate …

Background The rapid diagnosis of Coronavirus Disease 2019 (COVID-19) patients is
essential to reduce the disease spread. Rapid antigen detection (RAD) tests are available …

Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can spread
from symptomatic patients with COVID-19, but also from asymptomatic individuals …

Introduction Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is
rapidly spreading all over the world. A new quantifying reagent for detecting SARS-CoV-2 …

Background Knowing how long SARS-CoV-2-positive individuals can remain infective is
crucial for the design of infection prevention and control strategies. Viral culture is the gold …

Background. The highly variable manifestation of the COVID-19 disease, from completely
asymptomatic to fatal, is both a clinical and a public health issue. The criteria for discharge of …

Background: The recent emergence and rapid global spread of severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) demonstrates the urgent need for laboratory …