Smaller outbreaks and travel-linked infections continue to push the nation’s total higher, with new cases or exposures reported from Colorado, Iowa, New Mexico, and Wyoming.
Local health officials urged residents to make sure they are up to date with measles, mumps, and rubella (MMR) vaccination.
So far 40 states have reported measles cases, with 88% of infections part of 29 outbreaks.
Earlier wastewater detections came ahead of the identification of confirmed cases in other states.
Of the 19.9 million children who either have no vaccines or only partial DTP vaccination coverage, 55% live in 10 countries.
The new cases are part of a national surge fueled by multiple factors, including a large outbreak in West Texas, illnesses related to international travel, and a growing number of unvaccinated people.
So far this year, 1,288 cases have been reported from 39 states, and 88% have been part of 27 outbreaks.
With brisk activity in Canada, Mexico, and the US, cases in the Americas region are up 29-fold compared to a year ago.
New Mexico reported more infections from a county where an outbreak was reported at a jail.
For the 2024-25 school year, only 87% of Kentucky kindergartners were fully vaccinated against measles.
