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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The announcement of the new blood type has been the cause of much excitement in medical circles.

Here’s what you’ll learn when you read this story: The ABO-Rh system of blood group typing is an immensely successful method that helps medical professionals safely perform blood transfusions ...

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 ...

In 2011, a French woman was undergoing routine medical testing before surgery when doctors discovered a mysterious antibody in her blood. Now, scientists say the woman is the only known carrier of a ...

A French woman from the Caribbean island of Guadeloupe has been identified as the only known carrier of a new blood type, dubbed "Gwada negative," France's blood supply agency has announced. The ...