Talk about a lonely hearts club. An unnamed woman from Guadeloupe has the rarest blood type on earth, to the extent that ...

“She is undoubtedly the only known case in the world,” said Thierry Peyrard, a medical biologist at Établissement français du ...

Now, scientists say the woman is the only known carrier of a new blood type called “Gwada negative.” It’s the only blood type ...

Research suggests a surprising link between blood type and stroke risk, with people carrying one specific group A blood type ...

EFS discovers rare EMM-negative blood type, "Gwada negative," revolutionizing transfusion science with unique genetic ...

Research suggests that certain blood types are at increased risk of getting early strokes, especially type A, due to genetic and clotting-related factors.

Researchers identify the world’s 48th blood group system after a rare case stumps doctors.

What began as a routine lab test at a Paris hospital turned into a scientific milestone. A lab technician, expecting a ...

Gwada Negative’, a newly discovered blood group found in one woman, lacks the EMM antigen. It’s now the 48th official blood ...

The discovery was officially recognised earlier this month in Milan by the International Society of Blood Transfusion. The ...

In June 2025 the International Society of Blood Transfusion (ISBT) approved the world’s 48th human blood-group system, ...

After years of study, scientists have discovered a new blood type in a 68-year-old woman from Guadeloupe. She's believed to ...