Surveillance of influenza A virus in migratory waterfowl in northern Europe

Anders Wallensten, Vincent J. Munster, Neus Latorre-Margalef, Mia Brytting, Johan Elmberg, Ron A.M. Fouchier, Thord Fransson, Paul D. Haemig, Malin Karlsson, Åke Lundkvist, Albert D.M.E. Osterhaus, Martin Stervander, Jonas Waldenstrom, Björn Olsen

    Forskningsoutput: TidskriftsbidragArtikelPeer review

    200 Citeringar (Scopus)

    Sammanfattning

    We conducted large-scale, systematic sampling of influenza type A virus in migratory waterfowl (mostly mallards [Anas platyrhynchos]) at Ottenby Bird Observatory, southeast Sweden. As with previous studies, we found a higher prevalence in fall than spring, and among juveniles compared with adults. However, in contrast to other studies, we found that prevalence in spring was sometimes high (mean 4.0%, highest 9.5%). This finding raises the possibility that ducks are capable of perpetuating influenza A virus of different subtypes and subtype combinations throughout the year and from 1 year to the next. Isolation of the H5 and H7 subtypes was common, which suggests risk for transmission to sensitive domestic animals such as poultry. We argue that wild bird screening can function as a sentinel system, and we give an example of how it could have been used to forecast a remote and deadly outbreak of influenza A in poultry.

    OriginalspråkEngelska
    Sidor (från-till)404-411
    Antal sidor7
    TidskriftEmerging Infectious Diseases
    Volym13
    Utgåva3
    StatusPublicerad - 2007

    Nationell ämneskategori

    • Biologi (106)

    Fingeravtryck

    Fördjupa i forskningsämnen för ”Surveillance of influenza A virus in migratory waterfowl in northern Europe”. Tillsammans bildar de ett unikt fingeravtryck.

    Citera det här