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 …

Background There is limited information on the effect of age on the transmission of SARS-
CoV-2 infection in different settings. Methods We reviewed published studies/data on …

Importance Asymptomatic infections are potential sources of transmission for COVID-19.
Objective To evaluate the percentage of asymptomatic infections among individuals …

SARS-CoV-2 has spread across the world, causing high mortality and unprecedented
restrictions on social and economic activity. Policymakers are assessing how best to …

Scientists across disciplines, policymakers, and journalists have voiced frustration at the
unprecedented polarization and misinformation around coronavirus disease 2019 (COVID …

Objectives To explore household transmissibility of SARS-CoV-2 in children in new-variants
dominating periods. Methods Through retrieval in PubMed and Embase, studies were …

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 Meta-analyses and single-site studies have established that children are less
infectious than adults within a household when positive for ancestral SARS-CoV-2. In …

Background Prevalence measures the occurrence of any health condition, exposure or other
factors related to health. The experience of COVID-19, a new disease caused by SARS-CoV …

Background Up to 80% of active SARS-CoV-2 infections are proposed to be asymptomatic
based on cross-sectional studies. However, accurate estimates of the asymptomatic …