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

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

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.

The measles outbreak has already spread to three states and triggered more than 500 cases. But it could keep growing for ...

Here's what to know about whooping cough amid the growing cases.

Vaccine critics have downplayed the role of measles in two Texas girls’ deaths, peddled unproven measles treatments and ...

Measles cases are likely being underreported in the U.S. as public health officials scramble to find resources to manage a ...

Measles would normally be expected to have a fatality rate of about one to three deaths out of every 1,000 children infected, the CDC says, so the number of deaths this year suggests there may be far ...

As of Friday, the outbreak in Texas was up to 309 cases and one measles-related death, while New Mexico's case count was up to 42 and also one measles-related death. Forty-two people have been ...

Texas health officials reported over 560 measles cases in the state Tuesday, days after the Centers for Disease Control and Prevention announced 712 confirmed cases of measles in the U.S. as outbreaks ...

The measles outbreak in western Texas is continuing to grow, reaching 561 cases, according to new data published Tuesday.

The Texas Department of State Health Services has reported 561 cases of measles in 10 counties, with the highest number in Gaines County, and recommends that people get the MMR vaccine to prevent ...