Add Yahoo as a preferred source to see more of our stories on Google. Vaccines have saved countless lives, but Americans' attitudes toward them have shifted, especially in recent years. (Getty Images) ...

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our ...

North Carolina students are returning to class this fall amid outbreaks of measles across the U.S. PolitiFact examines ...

Measles cases are cropping up across the United States this year, and the Lehigh Valley is no exception. Two confirmed cases were reported in Lehigh County last month for the disease that was declared ...