Type Iv Hypersensitivity
Type Iv Hypersensitivity Introduction Cell-Mediated) Reactions/Delayed-type hypersensitivity/antibody-independent Involve reactions by memory cells. First contact sensitizes person. Subsequent contacts elicit a reaction. Reactions are delayed by one or more days (delayed type hypersensitivity). Delay is due to migration of macrophages and T cells to site of foreign antigens. Reactions are frequently displayed on the skin: itching, […]
Type Iv Hypersensitivity Read More »


