IN the five years that have elapsed since the Rh factor in human red cells — better known as the Rh blood type — was first discovered, there has been a steadily increasing volume of literature on this ...

Your blood type might seem like a minor detail in your medical history, but it carries significant implications for your health and medical care. From emergency transfusions to pregnancy planning, ...

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 ...