Cloth face coverings can be as effective as surgical masks at protecting against COVID-19, study finds
Researchers have found that well-fitting, three-layered cloth masks can be as effective at reducing the transmission of COVID-19 as surgical masks.
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/04/210428113723.htm
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/04/210428113723.htm
Cloth face coverings can be as effective as surgical masks at protecting against COVID-19, study finds
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April 28, 2021
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