Overview
- CDC data show 1,362 confirmed U.S. infections and 14 new outbreaks this year, with most cases tied to active clusters.
- South Carolina remains the epicenter with 920 infections since last fall, while Utah reports 443 total cases and adds theaters, schools and an aquarium to exposure lists.
- Colorado confirms its first vaccinated case of the year in Broomfield (single MMR dose) and a separate unvaccinated Weld County case linked to out-of-state travel, with new exposures at a Loveland UCHealth ER and pharmacy.
- Michigan declares an outbreak in Washtenaw County after three linked cases tied to an initial travel-related infection, as officials press residents to verify MMR records.
- International signals intensify with Tokyo at 34 cases and Japan at 100 as of March 8, Sydney at 33 this year, and Alberta issuing a standing exposure advisory for parts of its North Zone.