Graphic and Report: Effectiveness of Masks Against COVID-19 Infection
Graphic and Report: Effectiveness of Masks Against COVID-19 Infection
Date posted:
February 21, 2022
Last reviewed:
April 04, 2025
Centers for Disease Control and Prevention (CDC)
Graphic presents findings from the CDC's Morbidity and Mortality Weekly Report (MMWR), describing the real-world effectiveness of using face masks and respirators in indoor public settings to prevent COVID-19 infection. The report is available for download or online here: Effectiveness of Face Mask or Respirator Use in Indoor Public Settings for Prevention of SARS-CoV-2 Infection — California, February–December 2021 | CDC.
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