Michigan officials confirmed a new measles outbreak Thursday near Grand Rapids, bringing the U.S. to eight states with active ...

Canada has reported more than 730 cases this year, making this one of the worst measles outbreaks in the country since it ...

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

The disease is concentrated in the southwestern part of Kansas and did not spread to any additional counties. Measles cases ...

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

The Kansas Department of Health and Environment reported five more cases of measles in the past week from the outbreak in ...