Which type of immune responses responsible for caseation necrosis in TB?-
Correct Answer: Cell-mediated immunity
Description: Type 4 or delayed hypersensitivity or T cell mediated reaction is an immune response without formation of antibodies but is instead a slow and prolonged response .examples:reaction against mycobacterium infection ,virally infected cell,malignant cells and organ transplantation.Harshmohan textbook of pathology 7th edition
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