Definition of active immunity in English:

active immunity

Line breaks: ac¦tive im¦mun|ity

noun

[mass noun] Physiology
  • The immunity which results from the production of antibodies by the immune system in response to the presence of an antigen. Compare with passive immunity.
    More example sentences
    • Vaccination provides active immunity because our immune systems have had the time to recognize the invading germ and then to begin production of specific antibodies for the germ.
    • This vaccine is designed to stimulate both antibody and T-cell responses and to generate active immunity at mucosal surfaces, the first site of viral assault during most HIV infections.
    • Researchers expended considerable effort to develop methods of active immunity to prevent scarlet fever, as well as methods of passive immunity to treat scarlet fever.

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Word of the day skosh
Pronunciation: skōSH
noun
a small amount; a little