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Molecular mechanisms of interspecies transmission and pathogenicity of influenza viruses: Lessons from the 2009 pandemic.

Abstract

The emergence of the 2009 H1N1 virus pandemic was unexpected, since it had been predicted that the next pandemic would be caused by subtype H5N1. We also had to learn that a pandemic does not necessarily require the introduction of a new virus subtype into the human population, but that it may result from antigenic shift within the same subtype. The new variant was derived from human and animal viruses by genetic reassortment in the pig, supporting the concept that this animal is the mixing vessel for the generation of new human influenza viruses. Although it is generally believed that the 2009 outbreak was mild, there have been severe cases particularly among the young and the middle-aged. Pathogenicity and host range are determined to a large extent by the polymerase, the haemagglutinin and the NS1 protein of influenza A viruses. There is evidence that mutations of these proteins may change the pathogenicity of the new virus.

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  • Publisher Full Text
  • Authors+Show Affiliations

    ,

    Institut für Virologie, Philipps-Universität Marburg, Germany. Klenk@staff.uni-marburg.de

    ,

    Source

    MeSH

    Animals
    Birds
    Host Specificity
    Humans
    Influenza A Virus, H2N2 Subtype
    Influenza A Virus, H3N2 Subtype
    Influenza A Virus, H5N1 Subtype
    Influenza in Birds
    Influenza, Human
    Pandemics
    Reassortant Viruses

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    21319184

    Citation

    Klenk, Hans D., et al. "Molecular Mechanisms of Interspecies Transmission and Pathogenicity of Influenza Viruses: Lessons From the 2009 Pandemic." BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology, vol. 33, no. 3, 2011, pp. 180-8.
    Klenk HD, Garten W, Matrosovich M. Molecular mechanisms of interspecies transmission and pathogenicity of influenza viruses: Lessons from the 2009 pandemic. Bioessays. 2011;33(3):180-8.
    Klenk, H. D., Garten, W., & Matrosovich, M. (2011). Molecular mechanisms of interspecies transmission and pathogenicity of influenza viruses: Lessons from the 2009 pandemic. BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology, 33(3), pp. 180-8. doi:10.1002/bies.201000118.
    Klenk HD, Garten W, Matrosovich M. Molecular Mechanisms of Interspecies Transmission and Pathogenicity of Influenza Viruses: Lessons From the 2009 Pandemic. Bioessays. 2011;33(3):180-8. PubMed PMID: 21319184.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Molecular mechanisms of interspecies transmission and pathogenicity of influenza viruses: Lessons from the 2009 pandemic. AU - Klenk,Hans D, AU - Garten,Wolfgang, AU - Matrosovich,Mikhail, Y1 - 2011/01/13/ PY - 2011/2/15/entrez PY - 2011/2/15/pubmed PY - 2011/5/25/medline SP - 180 EP - 8 JF - BioEssays : news and reviews in molecular, cellular and developmental biology JO - Bioessays VL - 33 IS - 3 N2 - The emergence of the 2009 H1N1 virus pandemic was unexpected, since it had been predicted that the next pandemic would be caused by subtype H5N1. We also had to learn that a pandemic does not necessarily require the introduction of a new virus subtype into the human population, but that it may result from antigenic shift within the same subtype. The new variant was derived from human and animal viruses by genetic reassortment in the pig, supporting the concept that this animal is the mixing vessel for the generation of new human influenza viruses. Although it is generally believed that the 2009 outbreak was mild, there have been severe cases particularly among the young and the middle-aged. Pathogenicity and host range are determined to a large extent by the polymerase, the haemagglutinin and the NS1 protein of influenza A viruses. There is evidence that mutations of these proteins may change the pathogenicity of the new virus. SN - 1521-1878 UR - https://www.unboundmedicine.com/medline/citation/21319184/Molecular_mechanisms_of_interspecies_transmission_and_pathogenicity_of_influenza_viruses:_Lessons_from_the_2009_pandemic_ L2 - https://doi.org/10.1002/bies.201000118 DB - PRIME DP - Unbound Medicine ER -