Measles is highly contagious. It can lead to serious health problems. But it is preventable by the MMR vaccine.

North America has three other large outbreaks. The longest, in Ontario, Canada, has resulted in 2,276 cases from mid-October ...

A visitor from out of state stopped at the gift shop atop Monarch Pass last week while contagious with measles, possibly ...

The Colorado Department of Public Health and Environment confirmed a case of measles in an out-of-state resident who visited Monarch Mountain on July 25.

The Colorado Department of Public Health and Environment and Chaffee County Public Health have confirmed a case of measles in ...

The Colorado Department of Public Health and Environment (CDPHE) and Chaffee County Public Health have confirmed a case of ...

Another potential measles exposure site has been reported in Colorado, this time near Monarch Pass in Chaffee County.

The Colorado Department of Public Health and Environment and Chaffee County Public Health have confirmed a case of measles in ...

Colorado hasn't had any cases of measles yet this year, but with a large outbreak in Texas that has spread to New Mexico, the highly contagious virus could arrive soon. Medical professionals urge ...

For the first time in four years, a case of measles is being treated in Colorado. The adolescent, an international traveler, arrived at Denver International Airport on Dec. 13 and visited several ...

Get caught up on measles shots before spring break, Colorado state epidemiologist says Texas child is first to die in 20 years as more than 160 people contract measles in U.S.