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  1. AGRICULTURE, FORESTRY AND FISHERIES|agricultural activity|animal health · SOCIAL QUESTIONS|health|medical science

    #617635

    IATE #1073572
    fánaíocht antaigineach Tagairt Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Antigenwechsel | Antigendrift | Antigen-Drift
    de
    antigenic drift
    en
    Sainmhíniú small, gradual changes that occur through point mutations in the two genes that contain the genetic material to produce the main surface proteins, hemagglutinin, and neuraminidase. These point mutations occur unpredictably and result in minor changes to these surface proteins Tagairt "CDC. Influenza Viruses http://www.cdc.gov/flu/avian/gen-info/flu-viruses.htm [19.8.2009]"
    Nóta "In contrast, an abrupt, major change which results in a novel influenza A virus subtype in humans that was not currently circulating among people are called 'antigenic shifts' ( IATE:1108821 ).Influenza type A viruses undergo both kinds of changes; influenza type B viruses change only by the more gradual process of antigenic drift"
    dérive antigénique
    fr