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DO FACEMASKS REALLY WORK AGAINST COVID-19?
By The Guardian
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[COVID-19 Myths] Masks are effective at capturing droplets, which is a main transmission route of coronavirus, and some studies have estimated a roughly fivefold ...
[COVID-19 Myths] Masks are effective at capturing droplets, which is a main transmission route of coronavirus, and some studies have estimated a roughly fivefold ...