The responses observed in type IV hypersensitivities result from the action of
A) T cells and phagocytes.
B) autoantibodies.
C) inflammatory chemicals.
D) IgE antibodies and mast cells.
E) IgG and complement.

Question

Quizplus · Accepted Answer

Type IV hypersensitivity is mediated by T cells and phagocytes, not antibodies. It is a delayed-type hypersensitivity reaction.

The Responses Observed in Type IV Hypersensitivities Result from the Action