There have been 1,001 confirmed cases of measles across 30 states so far this year, according to the latest update from the CDC on Friday, an increase of 66 over the previous week and far surpassing the 285 measles cases in total reported in 2024 (the CDC does not provide data on how many cases are actively infectious).

The Texas health department on Friday reported 709 cases of measles in the state, an increase of 7 cases since May 6, as the U.S. battles one of its worst outbreaks of the childhood disease.

The outbreak that originated in Texas has spread into multiple states. And, the summer will be the real test of how much bigger this outbreak can grow.