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 ...

In a step toward increasing access to donor organs, scientists have converted a blood-type-A kidney to blood type O and then transplanted it into a brain-dead person. The kidney, which had essentially ...

Transplanting organs is tricky business. If you need an organ, you can't receive a donation from just anybody; it follows the same rules as blood type compatibility. For example, someone with blood ...