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 ...

In 2011, a woman from the French overseas region of Guadeloupe underwent routine tests before a surgery. Strikingly, doctors could not identify her blood group, which was so unique that they did not ...

See more of our coverage in your search results. Add The New York Post on Google Most people don’t spare a thought for their blood type unless they’re in need of a transfusion — but could yours hold ...