U.S. measles cases reach 125 this year, topping 2022's large outbreaks

At least 125 measles cases have been reported across 17 states so far this year, the Centers for Disease Control and Prevention said Friday, up from 121 cases last week.

More cases have now been reported this year than in all of 2022, the most recent annual peak of measles infections. Cases of measles had surged that year from outbreaks linked to unvaccinated Afghan refugees.  

Illinois remains the state with by far the largest number of measles cases this year, after a large outbreak at a Chicago migrant shelter that the city's health department now says has slowed significantly in the wake of a major vaccination push.