Add Yahoo as a preferred source to see more of our stories on Google. blood vial screen An investigation into why blood doesn't always behave as doctors expect has revealed a super-rare mutation in an ...

“I’m going to keep doing it until they tell me to stop,” said Nigel Vaughan, who has donated his blood nearly 250 times ...

Most people are familiar with the common blood groups A, B, AB and O, along with the Rh factor that determines whether a type is positive or negative. Yet new research reveals how surprisingly complex ...

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 ...

Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...

Two-year-old Zainab Mughal has neuroblastoma, an aggressive form of cancer. In December, we told you about the international search to find some of the rarest blood in the world to help save her life.

A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body," according to American Red Cross.

A single one-time gene therapy could free patients with α-thalassemia, a rare and debilitating blood disorder, from the burden of lifelong transfusions. A single one-time gene therapy could free ...

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 ...

There are rare blood types beyond the eight most common ones, and researchers have discovered one more that brings the total count to 49. Blood type A(B) is caused by a four gene mutations and was ...