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From Nordan Symposia
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''Passive immunity'' is acquired through [[transfer]] of antibodies or activated T-cells from an immune host, and is short lived -- usually lasting only a few months ''Active immunity'' is induced in the [[host]] itself by antigen, and lasts much longer, sometimes life-long.[http://en.wikipedia.org/wiki/Immunity_%28medical%29]
''Passive immunity'' is acquired through [[transfer]] of antibodies or activated T-cells from an immune host, and is short lived -- usually lasting only a few months ''Active immunity'' is induced in the [[host]] itself by antigen, and lasts much longer, sometimes life-long.[http://en.wikipedia.org/wiki/Immunity_%28medical%29]
==See also==
*'''''[https://en.wikipedia.org/wiki/Immune_system Immune System]'''''
[[Category: Health]]
[[Category: Health]]
