Measles cases have surpassed 650 in an ongoing multistate outbreak, but federal funding cuts could threaten the response.

By Teddy Rosenbluth As the United States struggles to contain a resurgence of measles that has swept through swaths of the Southwest, neighboring countries are responding to their own outbreaks.

A CDC senior scientist provided an update on the measles outbreak on Tuesday, while taking reporter questions about the ...

Before the vaccine, the virus spread in a world very different from today’s.

Measles have continued to spread in Texas with a total of 561 reported cases. Gaines County, the center of the outbreak, saw an increase of nine cases since mid-April.

Kansas health officials confirmed five new cases of measles Wednesday in an outbreak in the southwest corner of the state that's linked to Texas and New Mexico.

A person with measles is contagious from about four days before the rash appears to four days after. The state has reported 561 cases as of April 15.