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.

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. - 84800618

Diagram showing the structure of a blood cell. Vector illustration.

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