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,

The number of measles cases from the outbreak in West Texas is nearing 500 as close to 60 infections were reported in just three days. Here are key things to know about measles and the outbreaks in the U.

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. Other states with outbreaks — defined as three or more cases — include New Mexico,