In a routine blood test that turned extraordinary, French scientists have identified the world’s newest and rarest blood group. The sole known carrier is a woman from Guadeloupe whose blood is so ...

Add Yahoo as a preferred source to see more of our stories on Google. For decades, most of us thought blood types were simple: A, B, AB, or O—each with a positive or negative Rh factor. But that’s ...

Talk about a lonely hearts club. An unidentified woman from Guadeloupe has the rarest blood type on Earth, to the extent that she’s only compatible with herself. The 68-year-old is thus far the only ...

Step aside A, B, and O—there’s a new player in town. Scientists in France have just reported the discovery of a novel, rare blood type, only recorded in a single person to date. The French Blood ...

Iran is the only Islamic nation in the Eastern Mediterranean region that has a rare blood program, an official with the Iranian Blood Transfusion Organization (IBTO) has said.