ABO isoagglutinin titers in group "O" blood donors.

Background: High titers of anti-A and anti-B are considered to be one reason for hemolytic transfusion reactions and ABO hemolytic disease in fetus and neonates. There is no consensus for critical ABO antibody titers to guide transfusion or transplant decisions. Implementation of ABO titer measurement can favor reduction in transfusion reactions in nongroup "O" recipients.

Anti Kp alloantibody: Development of a rare alloantibody in a non-Hodgkin's lymphoma patient of Indian origin.

The Kell blood group system is complex, contains many antigens, highly immunogenic, and potent in triggering immune reactions. Antibodies to Kell blood group system are the most common immune red cell antibodies, following ABO and Rh. However, among the anti-Kell antibodies; anti-Kp is extremely rare.