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Evaluation of Strategies for the Eradication of Pseudorabies Virus (Aujeszky's Disease) in Commercial Swine Farms in Chiang-Mai and Lampoon Provinces, Thailand, Using a Simulation Disease Spread Model

Authors

  • N. Ketusing,

    Corresponding author
    1. Department of Livestock Development, National Institute of Animal Health, Bangkok, Thailand
    • Correspondence:

      N. Ketusing. Department of Livestock Development, National Institute of Animal Health, Chatuchak, Bangkok 10900, Thailand. Tel.: +6681-584-5833; Fax: +662-579-8919; E-mail: naree.ket@gmail.com

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  • A. Reeves,

    1. Animal Population Health Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
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  • K. Portacci,

    1. United States Department of Agriculture, Animal Plant Health Inspection Service, Veterinary Services, Centers for Epidemiology and Animal Health, Fort Collins, CO, USA
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  • T. Yano,

    1. Faculty of Veterinary Medicine, Chiangmai University, Chiang-Mai, Thailand
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  • F. Olea-Popelka,

    1. Animal Population Health Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
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  • T. Keefe,

    1. Environmental & Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA
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  • M. Salman

    1. Animal Population Health Institute, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
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Summary

Several strategies for eradicating Pseudorabies virus (Aujeszky's disease) in Chiang-Mai and Lampoon Provinces, Thailand, were compared using a computer simulation model, the North American Animal Disease Spread Model (NAADSM). The duration of the outbreak, the number of affected herds and the number of destroyed herds were compared during these simulated outbreaks. Depopulation, zoning for restricted movement and improved detection and vaccination strategies were assessed. The most effective strategies to eradicate Pseudorabies as per the findings from this study are applying depopulation strategies with MOVEMENT RESTRICTIONS in 3-, 8- and 16-km ZONES surrounding infected herds and enhancing the eradication with vaccination campaign on 16-km radius surrounding infected herds.

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