VIRGINIA BEACH, Va. — The Virginia Department of Health said Thursday that it's monitoring additional possible exposures to measles around Washington, D.C. VDH says this happened when a Maryland ...

Scientists are getting a better handle on the complexities of how immunity works. Attentive readers might have noticed my absence over the last couple of weeks. I’ve been trying to recover from a bout ...

Groundbreaking new tests reveal patterns in our immune systems that can signal underlying disease and tell us how well we might recover from our next cold. I got my results in a text message. The ...

Sat, January 24, 2026 at 2:56 PM UTC The immune system is the body’s natural defense network that helps to keep you healthy from things like bacteria, viruses, and parasites. It’s a complex network of ...

Herd immunity occurs when enough people in a group are immune to a specific infection that it cannot spread easily from person to person. Vaccination programs have been successful in creating herd ...

Add Yahoo as a preferred source to see more of our stories on Google. Orioles' Pete Alonso invites comedian John Oliver's son to a game after breaking young Mets fan's heart ...