MMWR Early Release - Vol. 71, February 4, 2022

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Reports on Mask Effectiveness Against SARS-CoV-2 Infection and more

February 4, 2022

EARLY RELEASE

Effectiveness of Face Mask or Respirator Use in Indoor Public Settings for Prevention of SARS-CoV-2 Infection — California, February–December 2021

Clinical Characteristics and Outcomes Among Adults Hospitalized with Laboratory-Confirmed SARS-CoV-2 Infection During Periods of B.1.617.2 (Delta) and B.1.1.529 (Omicron) Variant Predominance — One Hospital, California, July 15–September 23, 2021, and December 21, 2021–January 27, 2022

PDF of these reports (link and link) 

MMWR Weekly COVID-19 Briefing Podcast: Week of January 24

 

The latest MMWR Weekly COVID-19 Briefing is live. This episode covers two reports: one highlights trends in disease severity and health care utilization during the early Omicron variant period and the other looks at the effectiveness of a third dose of an mRNA vaccine in preventing COVID-19 hospitalization among adults with and without weakened immune systems. Listen and subscribe on: Apple Podcasts, Stitcher, Spotify, and Google Play.