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

Texas reported 20 new confirmed measles cases on Tuesday, a 4% increase from Friday’s data as the virus’ spread appears to be ...

Immunization programs nationwide have been left brittle by years of stagnant funding by federal, state and local governments.

An 8-year-old girl has died of measles in Texas. The patient was unvaccinated and had no underlying health issues, the ...

A second child in Texas has died of measles, according to the Texas Department of State Health Services, in a growing ...

Canada has reported more than 730 cases this year, making this one of the worst measles outbreaks in the country since it declared the virus “eliminated” in 1998. Mexico has seen at least 360 measles ...

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

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