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Predicting the initial spread of novel Asian origin influenza A viruses in the continental United States by wild waterfowl

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  • Predicting the initial spread of novel Asian origin influenza A viruses in the continental United States by wild waterfowl

    Transbound Emerg Dis. 2018 Nov 11. doi: 10.1111/tbed.13070. [Epub ahead of print]
    Predicting the initial spread of novel Asian origin influenza A viruses in the continental United States by wild waterfowl.

    Franklin AB1, Bevins SN1, Ellis JW1, Miller RS2, Shriner SA1, Root JJ1, Walsh DP3, Deliberto TJ1.
    Author information

    Abstract

    Using data on waterfowl band recoveries, we identified spatially-explicit hotspots of concentrated waterfowl movement to predict occurrence and spatial spread of a novel influenza A virus (clade 2.3.4.4) introduced from Asia by waterfowl from an initial outbreak in North America in November 2014. In response to the outbreak, the hotspots of waterfowl movement were used to help guide sampling for clade 2.3.4.4 viruses in waterfowl as an early warning for the U.S. poultry industry during the outbreak. After surveillance sampling of waterfowl, we tested whether there was greater detection of clade 2.3.4.4 viruses inside hotspots. We found that hotspots defined using kernel density estimates of waterfowl band recoveries worked well in predicting areas with higher prevalence of the viruses in waterfowl. This approach exemplifies the value of ecological knowledge in predicting risk to agricultural security. This article is protected by copyright. All rights reserved.


    KEYWORDS:

    Eurasia; influenza A virus; pathogen introduction; surveillance; waterfowl

    PMID: 30415502 DOI: 10.1111/tbed.13070
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