immune reaction definition

  • noun:
    • The response resulting from the recognition and binding of an antigen by its particular antibody or by a previously sensitized lymphocyte. Also known as immunoreaction.
    • all of the alterations in a tissue that be a consequence of the action of a foreign substance introduced into an organism
    • a bodily defense reaction that recognizes an invading compound (an antigen: such as for example a virus or fungus or bacteria or transplanted organ) and produces antibodies certain against that antigen

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