Delayed-type cell-mediated hypersensitivity primarily involves
A) erythrocytes.
B) B cells.
C) T cells.
D) mast cells.
E) T cells and platelets.

Question

Quizplus · Accepted Answer

Delayed-type cell-mediated hypersensitivity involves T cells, specifically CD4+ helper T cells and CD8+ cytotoxic T cells. These T cells play a key role in the immune response to intracellular pathogens, such as viruses and some bacteria, as well as in the pathogenesis of autoimmune diseases and contact dermatitis. Erythrocytes, B cells, and mast cells are not typically involved in this type of immune response. Platelets have a limited role in this type of immune response, but T cells are the primary effector cells.

Delayed-Type Cell-Mediated Hypersensitivity Primarily Involves