New in MMWR: Norovirus Outbreaks, HIV Rapid Transmission, and more

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This Week in MMWR: Vol. 71, September 22, 2022

September 23, 2022

WEEKLY REPORT

Outbreak of Acute Gastroenteritis Among Rafters and Backpackers in the Backcountry of Grand Canyon National Park, April–June 2022 During April 1–June 17, 2022, the largest outbreak of acute gastroenteritis documented in the Grand Canyon National Park backcountry occurred. At least 222 rafters and backpackers became infected, probably with norovirus. Strong partnerships with river outfitters and National Park staff members enabled implementation of prevention and control measures.

• Clusters of Rapid HIV Transmission Among Gay, Bisexual, and Other Men Who Have Sex with Men — United States, 2018–2021
• Two Cases of Monkeypox-Associated Encephalomyelitis — Colorado and the District of Columbia, July–August 2022
• Health Care Personnel Exposures to Subsequently Laboratory-Confirmed Monkeypox Patients — Colorado, 2022
• Monkeypox in a Young Infant – Florida, 2022
• Notes from the Field: Norovirus Outbreaks Reported Through NoroSTAT — 12 States, August 2012–July 2022

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QUICKSTATS

 

Death Rates from Unintentional Falls Among Persons Aged ≥65 Years, by Age Group — National Vital Statistics System, United States, 1999–2020

PDF of this Issue (link).

CONTINUING EDUCATION

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MMWR Weekly Briefing Podcast: Week of September 12

The latest MMWR Weekly Briefing is live. This episode covers four reports, including reports highlighting monkeypox exposure among health care providers, two cases of monkeypox patients with neurologic complications and more. Listen and subscribe on: Apple Podcasts, Stitcher, Spotify, and Google Play.

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