The first example of a Raddon-like antibody as a cause of a transfusion reaction

A serum Raddon defining a low-frequency red blood cell antigen FR, and its association with the Miltenberger complex of antigens, were reported in 1977. An antibody of the same serological specificity was the cause of a transfusion reaction. The patient's reaction and serological response, as well as the frequency of Raddon and its inheritance, are described.