TOPICS: Anaphylactic reaction, acute hemolytic transfusion reaction, febrile nonhemolytic transfusion reaction, transfusion-related acute lung injury (TRALI), Type I hypersensitivity reaction, Type II hypersensitivity reaction, leukoreduction, selective IgA deficiency, intravascular hemolysis, membrane attack complex (MAC), extravascular hemolysis, IgM, phagocytosis, cytokines, HLA, anti-leukocyte antibodies, polymorphonuclear cells (PMNs), blood types, red blood cell type A, red blood cell type B, red blood cell type AB, red blood cell type O, group A, group B, group AB, group O, anti-B, anti-A, A antigen, B antigen, A and B antigens, lysed red blood cell (RBC), hemoglobinuria, globin, heme, iron, protoporphyrin, unconjugated bilirubin, jaundice, liver, spleen