The South Carolina Department of Public Health announces 12 more measles cases in an ongoing outbreak.
Vermont and New York health officials are reporting their first measles cases of the year, bringing the country's total numbers of measles infections in 2026 to 910.
The perceived safety of the MMR vaccine is now 83% (down from 86%).
More than two-thirds of all cases (594) in South Carolina have occurred in children ages 5 to 17.
Preliminary data from 2025 show a drop in the number of measles cases reported across the European Union compared with 2024.
Among US measles patients, 95% are unvaccinated or have an unknown vaccine status, compared with 4% who are fully vaccinated.
Florida has the fourth most measles cases so far in 2026, with 21 confirmed.
DHS says all movement within the facility has stopped.
Also, Colorado scientists emphasize vaccination as they detail an 11-case measles outbreak last spring tied to a contagious international traveler.
The Utah Department of Health & Human Services has documented 21 new measles cases in the past week, for a total of 237 in this outbreak.