U.S. Measles Outbreak Reaches 483 Cases Across 19 States, Centered in Texas

The outbreak, the largest in decades, has caused one confirmed death and over 70 hospitalizations, with low vaccination rates fueling its spread.

Texas remains the epicenter of the outbreak, with 400 confirmed cases, primarily in Gaines County, which has one of the state's highest vaccine exemption rates.
The outbreak has spread to 18 other states and internationally to Mexico, with genetic links confirming its origin in Texas.
At least 70 people have been hospitalized, and one death in Texas has been confirmed, while another death in New Mexico is under investigation.
The vast majority of cases involve unvaccinated individuals or those with unknown vaccination status, highlighting the critical role of the MMR vaccine, which is 97% effective with two doses.
Health officials warn the outbreak could persist throughout 2025 due to vaccine hesitancy and low immunization rates in affected communities.