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Define cell-mediated immune response

Define cell-mediated immune response?

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This is totally based on T cells. Such T cells are of two kinds:

a) T helper cells (TH)
b) T cytotoxic cells. (TC)

T helper cells interrelate with antigen MCH II existed on APC (that is, Antigen presenting cell) and secrete cytokines. Such activate B cells, Tc cells and other phagocytic cells; such activated phagocytic cells kill microorganisms such as bacteria and protozoa.   

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