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Activation Of T-Cell Leukocytes. T-Cell Encounters Its Cognate Antigen On The Surface Of An Infected Cell. T Cells Direct And Regulate Immune Responses And Attack Infected Or Cancerous Cells.

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Activation of T-cell leukocytes. T-cell encounters its cognate antigen on the surface of an infected cell. T cells direct and regulate immune responses and attack infected or cancerous cells.

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