Read More: How Often Should I Donate Blood? There are 8 main blood types in humans, classified based on the ABO system and ...

The breakthrough has particular implications for minority groups, who often find it harder to find a match. A kidney from someone with blood type A cannot be given to someone with type B ...

She also has one of the rarest blood types in the world. More than 1,000 people were tested in a global search to find a donor match. The donor, a mother-of-two from Nottingham, has chosen to be ...