Genetic diversity among pandemic 2009 influenza viruses isolated from a transmission chain

Sarah Louise Fordyce, Karoline Bragstad, Svend Stenvang Pedersen, Thøger G. Jensen, Bente Gahrn-Hansen, Rod Daniels, Alan Hay, Marie-Louise Kampmann, Christian Anders Wathne Bruhn, José Victor Moreno Mayar, Maria del Carmen Avila Arcos, Tom Gilbert, Lars P. Nielsen

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    Abstract

    Influenza viruses such as swine-origin influenza A(H1N1) virus (A(H1N1)pdm09) generate genetic diversity due to the high error rate of their RNA polymerase, often resulting in mixed genotype populations (intra-host variants) within a single infection. This variation helps influenza to rapidly respond to selection pressures, such as those imposed by the immunological host response and antiviral therapy. We have applied deep sequencing to characterize influenza intra-host variation in a transmission chain consisting of three cases due to oseltamivir-sensitive viruses, and one derived oseltamivir-resistant case.
    Original languageEnglish
    Article number116
    JournalVirology Journal
    Volume10
    Number of pages9
    ISSN1743-422X
    DOIs
    Publication statusPublished - 2013

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