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Bhutan - 1 new outbreak of highly pathogenic avian influenza H5N1 in backyard birds in Chukha District (OIE, October 24, 2016)

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  • Bhutan - 1 new outbreak of highly pathogenic avian influenza H5N1 in backyard birds in Chukha District (OIE, October 24, 2016)

    Highly pathogenic avian influenza,
    Bhutan
    Information received on 24/10/2016 from Dr Tashi Samdup, Director General, Department of Livestock, Ministry of Agriculture and Forests, Thimphu, Bhutan
    Summary
    Report type Immediate notification
    Date of start of the event 10/10/2016
    Date of confirmation of the event 20/10/2016
    Report date 24/10/2016
    Date submitted to OIE 24/10/2016
    Reason for notification Reoccurrence of a listed disease
    Date of previous occurrence 11/2015
    Manifestation of disease Clinical disease
    Causal agent Highly pathogenic avian influenza virus
    Serotype H5N1
    Nature of diagnosis Laboratory (basic), Laboratory (advanced)
    This event pertains to a defined zone within the country
    New outbreaks (1)
    Outbreak 1 Alubari, Wangkha, Bjabcho, CHHUKHA
    Date of start of the outbreak 10/10/2016
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Backyard
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 3000 13 13 61 0
    Affected population Affected population is backyard poultry in one household.
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 3000 13 13 61 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Birds 0.43% 0.43% 100.00% 2.47%
    *Removed from the susceptible population through death, destruction and/or slaughter
    Epidemiology
    Source of the outbreak(s) or origin of infection
    • Unknown or inconclusive
    Epidemiological comments The outbreak has occurred in a backyard, free-ranging poultry population. While interviewing the owners of the birds, none of them mentioned source of infection. Further investigation on the source of infection will be followed-up. Only a small number of birds in an isolated pocket was affected. No further infection in flocks in close proximity was detected.
    Control measures
    Measures applied
    • Movement control inside the country
    • Screening
    • Disinfection / Disinfestation
    • Dipping / Spraying
    • Quarantine
    • Stamping out
    • Zoning
    • Vaccination prohibited
    • No treatment of affected animals
    Measures to be applied
    • No other measures
    Diagnostic test results
    Laboratory name and type Species Test Test date Result
    National Centre for Animal Health, Serbithang, Thimphu (National laboratory) Birds real-time PCR 13/10/2016 Positive
    National Institute of High Security Animal Diseases (NIHSAD), Bhopal, India (OIE Reference Laboratory) Birds real-time PCR 20/10/2016 Positive
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
    ...
    http://www.oie.int/wahis_2/public/wa...reportid=21337
    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela
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