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

Scientists are working to grow the rarest blood type in the world in a lab, an effort that could have huge ramifications for medicine. The blood type in question, Rh null, is found in just 50 people ...

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 ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Mina Stoddart-Stones has a very rare blood type [PA Media] A woman whose blood donations are so rare they are frozen for up to 30 ...

Orlando, Fla. -- An international search is on to find some of the rarest blood in the world to help save the life of a 2-year-old South Florida girl. Zainab has neuroblastoma, an aggressive form of ...

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.

Most people don’t spare a thought for their blood type unless they’re in need of a transfusion — but could yours hold secrets to your health? There are four main blood types: A, B, AB and O.

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 ...

A woman whose blood donations are so rare they are frozen for up to 30 years said she feels "very special and honoured" to be able to help sick patients. Mina Stoddart-Stones, from Bridgwater in ...