. "The process in which an antigenically naive T cell acquires the specialized features of an effector, regulatory, or memory T cell as part of an immune response. Effector T cells include cells which provide T cell help or exhibit cytotoxicity towards other cells." . . . "T cell differentiation involved in immune response" . "T cell development involved in immune response" . "T cell differentiation during immune response" . "T lymphocyte differentiation during immune response" . "T-cell differentiation during immune response" . "T-lymphocyte differentiation during immune response" . . . . .