Background Transplantation of hearts from ABO-incompatible donors is contraindicated because of the risk of hyperacute rejection mediated by preformed antibodies in the recipient to blood-group ...

Rejection was avoided for a few days using novel protocols. A pioneering technique has led to conversion of a human blood type-A donor kidney to type-O for transplantation into a type-O patient with ...

In the developed world, most of the reported complications of transfusion have an immunological basis. Although the media and the public are worried about the infectious risks of transfusion, ...