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live attenuated vaccine |
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live attenuated vaccine, a vaccine prepared from live microorganisms or functional viruses whose disease-producing ability has been weakened but whose immunogenic properties have not. live attenuated vaccine A vaccine that induces an immune response, which more closely resembles that of a natural infection, than that elicited by killed vaccines, as the organisms contained therein actively reproduce until held in check by
the recipient's own antibodies, thus often conferring life-long immunity Examples Measles, mumps, polio, rubella. See Killed vaccine. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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