Pennsylvania is one of several states that have reported recent measles cases. Here's what parents in Pennsylvania need to ...

Arizona health officials say there are four confirmed linked measles cases, making it another state with an outbreak.

The U.S. logged fewer than 30 measles cases this week as Ohio health officials confirmed three outbreaks in two counties were ...

The measles aren't commonly known as a seasonal infection, but it can be spread when children are in groups, like summer camps.