Immune-mediated hypersensitivity reactions Type I-Anaphylactic/Atopic Type IⅡ-Cytotoxic ·Type IlⅢ-Toxic Complex Type IV-T-cell mediatedImmune-mediated hypersensitivity reactions ◼ Type I - Anaphylactic/Atopic ◼ Type II - Cytotoxic ◼ Type III - Toxic Complex ◼ Type IV - T-cell mediated