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,

Texas has reached 422 cases of measles in an outbreak that started two months ago. Texas, New Mexico, Ohio, Kansas and Oklahoma all have active measles outbreaks.

The US has more measles cases this year than in all of 2024, the CDC said last week. Here’s what else you need to know about the outbreaks.