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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Delayed hypersensitivity involves:
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The correct answer is  Ans. is 'd' i.e., Lymphocytes (Ref: Ananthanarayan, 9th/e, p. 167 and 8th/e, p. 168)* Reaction is mediated by sensitized T-lymphocytes which, on contact with specific antigen, release lymphokines that cause biological effects on macrophages, leucocytes and tissue cells.* Delayed type by CD4 Th1 cell.