COVID-19

What is the evidence on wearing masks to stop COVID-19?

A couple wearing masks to protect against contracting the coronavirus disease (COVID-19) walk along a street in Seoul, South Korea, April 3, 2020.    REUTERS/Heo Ran - RC2YWF9Q93ZD

South Korea had a culture of wearing masks prior to the coronavirus outbreak. Image: REUTERS/Heo Ran

David Alexander Walcott
Founder and Managing Partner, Novamed
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Hong Kong and Singapore have limited the spread of coronavirus.
Hong Kong and Singapore have limited the spread of coronavirus. Image: Financial Times
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