Asymptomatic COVID-19 cases may account for more than half of all transmission
In this decision analytical model assessing multiple scenarios for the infectious period and the proportion of transmission from individuals who never have COVID-19 symptoms, transmission from asymptomatic individuals was estimated to account for more than half of all transmission. Meaning: The findings of this study suggest that the identification and isolation of persons with symptomatic COVID-19 alone will not control the ongoing spread of SARS-CoV-2.
(tags: epidemiology covid-19 transmission sars-cov-2 papers jama asymptomatic symptoms)