State health officials worry that declining vaccination rates have left many communities vulnerable nationwide.

Twenty-three measles cases have been reported in Kansas, and the state health department said they could be linked to an ...

A measles outbreak in Kansas doubled in less than a week to 23 cases and has “a possible link” to outbreaks in Texas and New ...

The Kansas Department of Health and Environment has confirmed 10 cases of measles in three counties as outbreaks across the U ...

The measles outbreak in western Texas is continuing to grow with 327 cases confirmed, according to new data published Tuesday ...

Although measles was declared eliminated in the United States in 2000, it still rages on in many parts of the world. With ...

Both formulations of the so-called MMR vaccine contain weakened live forms of the measles virus. The vaccine does ...

The latest data from the Centers for Disease Control and Prevention show 378 people in 18 states have been diagnosed with ...

As students return to school following spring break, Texas measles cases are continuing to grow with health officials warning ...

Texas' outbreak, which has largely spread in undervaccinated Mennonite communities, could last a year, based on studies.

Vaccination efforts have faltered, and many residents have turned to alternative treatments endorsed by Robert F. Kennedy Jr.