The measles outbreak that began in the South Plains region surged to 400 cases across Texas on Friday, with dozens more reported in New Mexico and Oklahoma. The latest update from the Texas Department of State Health Services added 73 infections,

Texas and New Mexico health departments said on Friday that the number of measles cases in their states rose 20% since their last reports three days ago, as experts warn they expect the outbreak to further spread in coming weeks.

At least five states have active measles outbreaks as of Friday, and Texas' is the largest with 400 cases. Already, the U.S. has more measles cases this year than in all of 2024, the U.S. Centers for Disease Control and Prevention has said.