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, Kansas, Ohio and Oklahoma. Since February, two unvaccinated people have died from measles-related causes.

The measles outbreak centered in the South Plains region soared past a combined 500 cases in Texas, New Mexico and Oklahoma on Friday, according to health officials. Texas has seen 481 measles cases amid the outbreak that began in late January,