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PubMed COVID-19 Clinical Care

1531 - 1540 of 1619 results found

How do three-layer surgical masks prevent SARS-CoV-2 aerosol transmission?

Date
Friday, March 24, 2023 - 4:00 AM
Description
The three-layer surgical mask was recognized by the World Health Organization as an effective-protection tool for reducing SARS-CoV-2 transmission during the COVID-19 pandemic; however, the contribution of each layer of this mask to the particle size