Sunday 25 October 2020
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webmd - 2 month ago

Are Masks a Kind of Vaccine Against COVID-19?

New research suggests face masks may act as a crude vaccine of sorts. The theory -- and it remains largely a theory -- is that by filtering out airborne coronavirus droplets and thereby lowering the dose of SARS-CoV-2 a person inhales, infections have much less chance of producing symptoms.


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