Alliance for Pandemic Preparedness
January 8, 2021
SARS-CoV-2 Transmission From People Without COVID-19 Symptoms
Category: Article Summary
Topic: Modeling and Prediction
Keywords (Tags): modeling prediction, non-pharm interventions, transmission
A mathematical model estimates that 59% of all transmission of SARS-CoV-2 comes from asymptomatic cases, suggesting that strategies based on identifying and isolating symptomatic people will not control the pandemic. The model estimates that 35% of SARS-CoV-2 transmission comes from presymptomatic individuals and 24% from individuals who never become symptomatic.
Johansson et al. (Jan 7, 2021). SARS-CoV-2 Transmission From People Without COVID-19 Symptoms. JAMA Network Open. https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2774707