There’s more history in your blood types than you think, and it didn’t begin with humans. Here’s what we know about them, ...

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 ...

Global health authorities are updating policies to conserve scarce Rh-negative blood while new scientific breakthroughs reveal ultra-rare blood types. Australia has expanded donor eligibility to ...

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 ...

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

Your blood type is more than just a label on your medical chart—it can affect your health, disease risk, and even emergency ...

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.

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 ...