Tuberclin test is reaction of -: (A) Anaphylaxis mediated, (B) Cell mediated, (C) Antibody mediated, (D) Immune complex mediated
Answer is B. Tuberculin test is type IV hypersensitivity reaction. - it 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>