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"Mask Facts" by the Association of American Physicians and Surgeons
Mask Facts - AAPS | Association of American Physicians and Surgeonscurated by Marilyn M. Singleton, M.D., J.D. Transmission of SARS-CoV-2 Note: A COVID-19 (SARS-CoV-2) particle is 0.125 micrometers (μm); influenza virus size is 0.08 – 0.12 μm; a human ...
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