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Tag: Covid 19 Mask

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  • Why and how face masks are effective in limiting Covid spread

    Why and how face masks are effective in limiting Covid spread

    "For the airborne transmission of SARS-CoV-2, we find that usually just a minor fraction of exhaled respiratory particles contains viruses. Most environments and contacts are under virus-limited conditions, wear face masks, including simple surgical masks, have a high efficacy in preventing the spread of Covid-19."

    May 25, 2021