What cells are involved in type 4 hypersensitivity?
What cells are involved in type 4 hypersensitivity? Type IV hypersensitivity typically occurs at least 48 hours after exposure to an antigen. It involves activated T cells, which release cytokines and chemokines, and macrophages and cytotoxic CD8+ T cells that are attracted by these moieties. Is Type 4 hypersensitivity autoimmune? Read more…