title: Nature and classification of immediate-type allergic reactions.
mesh_terms: D000707:Anaphylaxis; D000906:Antibodies; D000936:Antigen-Antibody Complex; D000937:Antigen-Antibody Reactions; D000941:Antigens; D001779:Blood Coagulation Factors / Q000378:metabolism; D002633:Chemotaxis; D003165:Complement System Proteins / Q000378:metabolism; D004950:Esterases / Q000378:metabolism; D006636:Histamine Release; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000145:classification / Q000276:immunology*; D007104:Immune Adherence Reaction; D007114:Immunization; D007705:Kinins / Q000378:metabolism; D008247:Lysosomes; D008407:Mast Cells / Q000276:immunology; D009504:Neutrophils / Q000276:immunology
chemical_list: D000906:Antibodies; D000936:Antigen-Antibody Complex; D000941:Antigens; D001779:Blood Coagulation Factors; D007705:Kinins; D003165:Complement System Proteins; D004950:Esterases