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  1. ... the immune system with "memory" against past infections . Memory T cells comprise two ...role is to shut down T cell-mediated immunity toward the end of an immune reaction and to suppress auto-reactive...

    1 Answers · Science & Mathematics · 28/03/2010

  2. ...to a part of a pathogen that it needs to cause an infection . The large and diverse population of antibodies..., acting in both non-specific defense (or innate immunity ) as well as specific defence (or cell-mediated...

    4 Answers · Science & Mathematics · 08/04/2008

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