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Taiwan - 2 new outbreaks of highly pathogenic avian influenza H5N5 in poultry in farm and slaughterhouse, Yunlin County, Taipei City (OIE, September 07, 2020)

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  • Taiwan - 2 new outbreaks of highly pathogenic avian influenza H5N5 in poultry in farm and slaughterhouse, Yunlin County, Taipei City (OIE, September 07, 2020)

    Highly pathogenic avian influenza,
    Chinese Taipei
    Information received on 07/09/2020 from Dr Wen-Jane Tu, Chief Veterinary Officer, Director General, Bureau of Animal and Plant Health Inspection and Quarantine, Council of Agriculture, Executive Yuan, Taipei, Chinese Taipei
    Summary
    New outbreaks (2)
    Outbreak 1 (2020-yl-15) Taixi Township, Yunlin County
    Date of start of the outbreak 17/08/2020
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 4666 20 0 4666 0
    Affected population Meat ducks(2020-yl-15)
    Outbreak 2 (2020-tp-6) Wanhua District, Taipei City
    Date of start of the outbreak 23/08/2020
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Slaughterhouse
    Affected animals
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 4 1 0 4 0
    Affected population Native chickens(2020-tp-6)
    Summary of outbreaks Total outbreaks: 2
    Total animals affected
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 4670 21 0 4670 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Birds 0.45% 0.00% 0.00% 100.00%
    *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 Samples from Yunlin County were sent to the National Laboratory, Animal Health Research Institute (AHRI), for diagnosis. Highly pathogenic avian influenza H5N5 subtype was confirmed by AHRI. The infected farm in Yunlin County has been placed under movement restriction. All animals on the infected farm have been culled. Thorough cleaning and disinfection have been conducted after stamping out operation. Surrounding poultry farms within 3 km radius of the infected farm are under intensified surveillance for three months. Suspected signs were observed in poultry carcasses during post-mortem inspection in the abattoir in Taipei City. Samples were sent to the AHRI for diagnosis. H5N5 subtype HPAI was confirmed by the AHRI. The carcasses were destroyed and thorough cleaning and disinfection have been conducted in the abattoir. After tracing back to the farm of origin, any positive results will be included in follow-up reports.
    Control measures
    Measures applied
    • Movement control inside the country
    • Surveillance outside containment and/or protection zone
    • Surveillance within containment and/or protection zone
    • Traceability
    • Quarantine
    • Stamping out
    • Zoning
    • Disinfection
    • 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
    Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 19/08/2020 Positive
    Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 25/08/2020 Positive
    Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 27/08/2020 Positive
    Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 18/08/2020 Positive
    Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 24/08/2020 Positive
    Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 26/08/2020 Positive
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.

    ...

    https://www.oie.int/wahis_2/public/w...reportid=35623
    "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."
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