New in MMWR: Updated COVID-19 Vaccines, Immunization Schedules, & more

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February 10, 2023


The figure is a graphic describing how updated COVID-19 vaccines can help save lives. The text reads, “Vaccinated people who received an updated COVID-19 vaccine were 14 times less likely to die compared to those who received no vaccine, and 3 times less likely to die compared with those who received only the original COVID-19 vaccine(s). People ages 12+ who got their last COVID-19 vaccine dose before September 2022 should get an updated vaccine.”

COVID-19 Incidence and Mortality Among Unvaccinated and Vaccinated Persons Aged ≥12 Years by Receipt of Bivalent Booster Doses and Time Since Vaccination — 24 U.S. Jurisdictions, October 3, 2021–December 24, 2022

Bivalent booster recipients in 24 U.S. jurisdictions had slightly higher protection against infection and significantly higher protection against death than was observed for monovalent booster recipients or unvaccinated persons, especially among older adults.



The figure is a bar chart showing the percentage of adults aged ≥45 years who use a hearing aid, by sex and age group, in the United States during 2021, according to the National Health Interview Survey.

PDF of this Issue (link).


The figure is a photo of a person in a blue dressing gown laying in a hospital bed.

This figure is an image of a microphone on a dark background with sound waves and the text “MMWR Weekly Briefing,” representing the MMWR podcast.

MMWR Weekly Briefing Podcast: Week of January 23

The latest MMWR Weekly Briefing is live. Topics include: effectiveness of the updated COVID-19 vaccine against Omicron XBB-related variants, prevention and treatment of COVID-19 for people with weakened immune systems, and more. Listen and subscribe on: Apple Podcasts, Stitcher, Spotify, and Google Play.

Centers for Disease Control and Prevention

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