Four Texas counties are reporting cases in Texas, but new outbreaks have not reached the 2025 levels.

The Department of Homeland Security has confirmed it is enforcing a quarantine at an El Paso-area immigration detention center due to a measles outbreak.

As U.S. hospitals face an increasing risk of encountering measles, and pressure to immediately spot it, health care workers ...

Here's a look at how a measles outbreak starts, as exposures at two Colorado schools lead to infections potentially spinning ...