One-fifth of states have active measles outbreaks as confirmed cases nationwide keep ticking up, according to the U.S.

The department is not releasing which counties have cases, but Cleveland, Custer, Oklahoma and Sequoyah counties have had public exposures in the past couple of months. Tennessee had six measles ...

One-fifth of states have active measles outbreaks as confirmed cases nationwide keep ticking up, according to the U.S.