Report: Effectiveness of Masks Against COVID-19 Infection
Report: Effectiveness of Masks Against COVID-19 Infection
Date posted:
February 21, 2022
Last reviewed:
November 20, 2023
Centers for Disease Control and Prevention (CDC)
Report describes findings from a study conducted by the Centers for Disease Control and Prevention (CDC) that examined the real-world effectiveness of face masks and respirators in indoor public settings to prevent COVID-19 infection. The study was published in the Morbidity and Mortality Weekly Report (MMWR) in February 2022. An accompanying graphic summarizes the results.
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