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单词 antigenic variation
释义 DictionarySeevariation

antigenic variation


antigenic variation

[‚an·tə¦jen·ik ‚ver·ē′ā·shən] (immunology) Alteration of an antigen on the surface of a microorganism; may enable a pathogenic mocroorganism to evade destruction by the host's immune system.

antigenic variation


antigenic variation

successive changes in the surface ANTIGENS of certain MICROORGANISMS, resulting in a range of antigenically different forms. This can help a PATHOGEN, such as influenza virus, to avoid the host's immune defence system. See IMMUNITY.
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