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What is Active immunity in Biology? PDF | Download eBooks

Learn Active immunity definition in biology with explanation to study “What is Active immunity”. Study active immunity explanation with biology terms to review biology course for online degree programs.

Active immunity Definition

  • Active immunity is the defenses that arise when a pathogen infects the body and prompts a primary or secondary immune response.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Active immunity Explanation

Active immunization is the induction of immunity after exposure to an antigen. Antibodies are created by the recipient and may be stored permanently. Active immunization can occur naturally when a microbe or other antigen is received by a person who has not yet come into contact with the microbe and has no pre-made antibodies for defense. The immune system will eventually create antibodies for the microbe, but this is a slow process and, if the microbe is deadly, there may not be enough time for the antibodies to be used.

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