Delayed tuberculin test response is due to-
Tuberculin test is type IV hypersensitivity reaction. Delayed or cell mediated hypersensitivity is a cell mediated response. The antigen activates specifically sensitised CD4 & CD8 T lymphocytes leading to the secretion of lymphokines and phagocyte accumulation. Reference : Anathanarayan & paniker's 9th edition, pg no: 162 <\p>
B lymphocytes
T lymphocytes
Monocytes
Histiocytes
Immunology