There have been hundreds of measles cases reported in the U.S. since the beginning of the year. Here's what you need to know ...

Anyone vaccinated against measles in the 1960s should consider a booster dose, as early versions of the vaccine have proven ...

“Infected people are contagious from 4 days before the rash starts through 4 days afterward. The incubation period for ...

There has been an uptick in Measles cases across the United States. Learn more about the infection and how to prevent it.

The Oklahoma State Department of Health reports these cases are among unvaccinated individuals in northeastern Oklahoma.

Chicago and Illinois have no confirmed cases so far this year, but public health experts say it's just a matter of time before the virus is here. Chicago Tonight is available to stream on pbs.org ...