Hypersensitivity.
D000707:Anaphylaxis; D001327:Autoimmune Diseases; D003876:Dermatitis, Atopic; D004342:Drug Hypersensitivity; D006084:Graft Rejection; D006968:Hypersensitivity, Delayed; D006969:Hypersensitivity, Immediate; D012713:Serum Sickness