The CDC says more than twice as many measles have come from outside of the U.S. compared with May of last year, and most of those are in unvaccinated Americans returning home. In 2019, the U.S. saw 1,274 cases and almost lost its status of having eliminated measles.

Sign up for The Brief, The Texas Tribune’s daily newsletter that keeps readers up to speed on the most essential Texas news. The number of cases reported in Texas' historic measles outbreak has risen to 738 cases,

The Texas health department on Friday reported 738 cases of measles in the state, up by nine additional cases since its last update on Tuesday. The U.S. is battling one of the worst outbreaks of measles it has seen,