Importance Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiology of
coronavirus disease 2019 (COVID-19), is readily transmitted person to person. Optimal …

Background There is disagreement about the level of asymptomatic severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) infection. We conducted a living systematic review …

Recent epidemiologic, virologic, and modeling reports support the possibility of severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission from persons who are …

Background Debate about the level of asymptomatic Severe Acute Respiratory Syndrome
Coronavirus 2 (SARS-CoV-2) infection continues. The amount of evidence is increasing and …

Background Reports suggest that asymptomatic individuals (those with no symptoms at all
throughout infection) with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) …

Background Little is known about the natural history of asymptomatic severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Methods We conducted a …

Background There is substantial disagreement about the level of asymptomatic severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in a population. The …

Background Factors that lead to successful SARS-CoV-2 transmission are still not well
described. We investigated the association between a case's viral load and the risk of …

Objectives To summarise the evidence on the duration of infectiousness of individuals in
whom SARS-CoV-2 ribonucleic acid is detected. Methods A rapid review was undertaken in …

Background Understanding the extent of virus transmission that can occur before symptom
onset is vital for targeting control measures against the global pandemic of COVID-19 …