Imagine having a blood type so rare that only two other people in the entire world could match it. That’s the reality for ...

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 ...

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 ...

In 2011, a woman from the French overseas region of Guadeloupe underwent routine tests before a surgery. Strikingly, doctors could not identify her blood group, which was so unique that they did not ...

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 ...

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 ...

India recently made global headlines in medicine with the discovery of a new blood group called CRIB in a 38-year-old woman from Kolar, near Bengaluru. The finding, confirmed after months of research, ...

It started with a routine blood test before surgery. What doctors discovered next hadn’t been seen in medical history. For decades, most of us thought blood types were simple: A, B, AB, or O—each with ...