Texas and New Mexico's health departments said on Friday measles cases in their states have risen to 444, an increase of 74 infections since their last reports three days ago, as the U.S. deals with one of the largest measles outbreaks in a decade.

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.

The measles outbreak that began in northwest Texas grew to 327 cases on Tuesday, with dozens more reported in New Mexico and Oklahoma. The latest update from the Texas Department of State Health Services shows that nearly 70% of all cases in Texas have been in Gaines County,