How well do face masks protect against COVID-19? - Mayo Clinic

Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.

No face mask for Vice President Mike Pence as he tours Mayo's COVID-19 testing labs in Rochester

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How well do face masks protect against COVID-19? - Mayo Clinic

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How well do face masks protect against COVID-19? - Mayo Clinic

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