There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is important for safe blood transfusions and organ transplants. Type ...

IN 2023, a paper was published in the journal Blood that ended a mystery stretching back four decades. It detailed the existence of a new blood type, first proposed in the 1980s – and of which there ...