Add Yahoo as a preferred source to see more of our stories on Google. Scientists have discovered the rarest blood type on Earth, belonging to just one woman. Talk about a lonely hearts club. An ...

Blood type plays a critical role in medical emergencies, especially during transfusions. Some blood types are extremely rare, which can make finding compatible donors more difficult in urgent ...

In a groundbreaking discovery, scientists have identified a new blood type that is so rare it exists in only one person on Earth. The blood type, called “Gwada negative,” was found by researchers at ...

An investigation into why blood doesn't always behave as doctors expect has revealed a super-rare mutation in an extremely uncommon variation of blood. Testing more than 544,000 blood samples in a ...

The ABO-Rh system of blood group typing is an immensely successful method that helps medical professionals safely perform blood transfusions throughout the world. Scientists from the French Blood ...

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 ...

French scientists have discovered a new blood type in a woman from the Caribbean island of Guadeloupe, France's blood supply agency announced Friday. The woman is the only known carrier of a new blood ...

A routine medical test turned extraordinary for a woman from the Caribbean when doctors found something completely new in her blood. Nearly 15 years ago, while preparing for surgery in Paris, doctors ...

In a groundbreaking development, French scientists have identified the world’s rarest blood group, known as Gwada-negative. It's a blood group so rare that only one woman in the world is known to have ...

A group of French researchers have discovered a new, "ultra rare" blood group in a Guadeloupean woman after years of researching and sequencing her blood, the French Blood Establishment (EFS) said in ...