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glossary:passive_immunity [2007/09/08 09:32]
glossary:passive_immunity [2012/10/16 14:40] (current)
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|+||(Science: [[immunology]]) [[immunity]] acquired by the transfer from another animal of antibody or sensitised [[lymphocytes]]. passive transfer of antibody from mother to offspring is important for immune defense during the [[perinatal period]]. An impermanent form of acquired immunity in which antibodies against a [[disease]] are acquired naturally (as through the placenta to an unborn child) or artificially (as by injection of antiserum).A situation where ready made [[antibodies]] are present to fight off an [[antigen]]. These [[antibodies]] may have derived from the mothers' placenta which transmitted antibodies to the offspring during pregnancy or via a vaccination which allowed the body to recognise the particular [[pathogen]] at hand before the real thing comes along and authentically attacks. |