As many as 1 in 5 Americans believe they have a penicillin allergy, but just a tiny fraction actually do. In recent years, it's gotten a lot easier to find out.

There's a new medical issue on Martha's Vineyard, and it's impacting the way people eat. It's known as "alpha-gal syndrome," ...

More people are being diagnosed with a syndrome that can cause hives, stomach pain and nausea after eating certain animal ...