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The science around the use of masks by the general public to impede COVID-19 transmission is advancing rapidly. Policymakers need guidance on how masks should be used by the general population to combat the COVID-19 pandemic. Here, we synthesize the relevant literature to inform multiple areas:
1) transmission characteristics of COVID-19,
2) filtering characteristics and efficacy of masks,
3) estimated population impacts of widespread community mask use, and
4) sociological considerations for policies concerning mask-wearing.
A primary route of transmission of COVID-19 is likely via small respiratory droplets and is known to be transmissible from presymptomatic and asymptomatic individuals. Reducing disease spread requires two things: first, limit contacts of infected individuals via physical distancing and contact tracing with appropriate quarantine, and second, reduce the transmission probability per contact by wearing masks in public, among other measures.Subscribe to Comments