measles

The five people with confirmed cases are adults and children who are residents of Gallatin County and exposed to the highly-contagious virus while traveling outside of Montana.

At least 95% of community members need to be vaccinated to protect against the virus. That number is a lot lower in some western states.

Herd immunity is what protects those who, for medical reasons, cannot take the vaccine, such as newborn babies.

Back in mid-December, three children were hospitalized with measles after passing through the Denver airport and the emergency department of Children’s...

Three children are being treated at a Denver-area hospital for measles, adding to the more than 1,200 cases of the disease reported this year nationwide...

This post was updated at 8:30 p.m. with additional information. About 60 people gathered at the Colorado Capitol Monday for the third and final day of a...

Researchers writing in the journal Science found that when kids get measles, it can cause “amnesia” in the immune system. In much of the Mountain West,...

This post was updated May 28, 2019 at 9:15 p.m. to include the leastest outbreak numbers and an additional infographic. Measles have reached the highest...

This story was updated May 3, 2019 at 3:40 p.m. Measles cases have reached a 19-year high in the U.S., but a bill in Colorado aimed at improving...

Updated at 1:55 p.m., Feb. 26, 2019: As a measles outbreak continues in Washington state, a congressional hearing Wednesday will discuss the preventable...