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 ...

For those with kidney failure, a transplant is often the greatest promise of a healthier, longer life. Yet thousands wait years for a match that never comes. Incompatibility of blood type is one of ...

Scientists have taken a decisive step toward ending one of transplant medicine’s most stubborn bottlenecks: the need to match donor organs to a recipient’s blood type. By chemically reengineering a ...