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 ...

As the regional blood bank is grappling with a shortage of donations, OneBlood is calling on those of African descent to ...

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 ...

When Nigel Vaughan was just 16 in the 1970s, he was told that he had "special blood" during a murder investigation. Vaughan, now 70, lived in Blackpool, England. After a murder took place, men within ...

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.

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