In October 2023, the Pasadena Public Health Department identified dengue in a symptomatic patient with no recent travel history. Subsequent epidemiologic investigation of the surrounding neighborhood identified an asymptomatic second person with infection.
National genomic surveillance detected the emergence of JN.1 and other variants in the United States, revealing that SARS-CoV-2 continues to undergo large genetic shifts.
The public health response included case investigation and surveillance, mosquito surveillance and control, assessment of hospital preparedness, and clinical and public outreach.
Evidence suggests that private balcony hot tubs were the likely source of Legionella exposure among cruise ship passengers of two ships. The outbreak on one of the cruise ships was the largest cruise-associated Legionnaires disease outbreak investigated by CDC since 2008.
The latest MMWR Weekly Briefing is live. Topics include: frequent social media use among teens, experiences of racism in school among high school students, and more. Listen and subscribe on: Apple Podcasts and Spotify.
