Other U.S. states with active outbreaks — which the CDC defines as three or more related cases — include Arizona, Colorado, ...

An El Paso County child and an Arapahoe County adult caught the measles from two separate outbreaks, bringing Colorado’s total number of cases this year up to 14, state health officials said.

Kentucky has its first measles outbreak of 2025, as the U.S. case count sits just short of a 30-year high. There have been ...

About three dozen of the nearly 1,200 measles infections in 2025 have been in people with two measles vaccine doses, the CDC says.

Kansas added three more cases this week for a total of 83 across 11 counties in the southwestern part of the state, with ...

There have been 1,214 confirmed measles cases this year, the Centers for Disease Control and Prevention said Friday.

Childhood vaccination rates against measles fell in the years after the COVID-19 pandemic in nearly 80% of the more than 2,000 U.S. counties with available data.

A Boulder County resident has contracted the measles, according to the Colorado Department of Public Health and Environment. This is Colorado's 15th case of the disease.

He was a chiropractor by training, but in a remote part of west Texas with limited medical care, Kiley Timmons had become a ...

The case was confirmed in an unvaccinated adult who recently returned from international travel lasting four to five weeks.

Wyoming’s first case of child measles since 2010 has been identified in Natrona County, the Wyoming Department of Health reported Tuesday. About 30 ...