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1. www.webmd.com › covid › coronavirus-face-masksFace Mask for Coronavirus: Types, Best Filters, How to Make ...

   www.webmd.com › covid › coronavirus-face-masks

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   2024年5月16日 · Choose a well-fitting face mask of any material. Avoid gaps around your nose, mouth, chin, and the sides of your face. You can combine a cloth mask and a disposable mask to get better protection ...

2. www.webmd.com › covid › coronavirus-transmission-overviewHow Coronavirus Is Transmitted: Here Are All the Ways It Can ...

   www.webmd.com › covid › coronavirus-transmission-overview

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   2023年12月19日 · COVID-19 Transmission. By understanding how coronavirus spreads, you can take the right steps so you don't get sick and infect others. COVID transmission rate. Recent data from the World Health...