SARS-CoV-2 transmission from people without COVID-19 symptoms

MA Johansson, TM Quandelacy, S Kada… - JAMA network …, 2021 - jamanetwork.com
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
control of COVID-19 depends on directing resources and health messaging to mitigation
efforts that are most likely to prevent transmission, but the relative importance of such
measures has been disputed. Objective To assess the proportion of SARS-CoV-2
transmissions in the community that likely occur from persons without symptoms. Design …