Measles has sickened nearly 150 mostly unvaccinated people in rural West Texas, and a school-age child has died.

While most people's symptoms improve, 1 in 5 unvaccinated people who catch measles will be hospitalized, 1 out of every 1,000 ...

The good news is that existing vaccines also prevent this process. By blocking the virus from infecting the immune system in ...

Measles cases have been popping up across the country. We asked a pediatrician to break down the risks to children.