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​Hong Kong - African swine fever 2019

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  • ​Hong Kong - African swine fever 2019

    Hong Kong reports African swine fever case

    HONG KONG (Reuters) - Hong Kong government confirmed an African swine fever case on Friday night, in a further sign that the virus is continuing to spread beyond mainland China?s borders.
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    Pig cull to curb virus spread

    May 10, 2019

    Download Video| Transcript

    Secretary for Food & Health Prof Sophia Chan today said all pigs will be culled after African Swine Fever (ASF) virus was found in a pig there.

    Prof Chan chaired an inter-departmental meeting to discuss the response action and follow-up work after the Agriculture, Fisheries & Conservation Department confirmed that a sample taken from a pig at the slaughterhouse tested positive for the virus.

    ?In order to minimise the risk of ASF virus spreading from the slaughterhouse, all pigs in Sheung Shui Slaughterhouse will be culled so that thorough cleansing and also disinfection could be conducted.

    ?The operation of the Sheung Shui Slaughterhouse will be suspended until the completion of the disinfection work.?

    Prof Chan said there are about 6,000 pigs at the slaughterhouse.

    ?We envisage that fresh pork supply will be reduced in the near future. However, as Tsuen Wan Slaughterhouse is not affected and will operate as normal, there will still be a limited supply of live pigs available to the market.?

    The health chief said ASF poses no food safety risk as it will not be transmitted to humans, adding that well-cooked pork is safe for consumption.

    ?We will enhance the surveillance and also testing of pigs, and currently we collect samples from pigs with ASF symptoms for testing, and in the future we will step up the sampling of other pigs for testing.?

    The pig concerned was imported from a Guangdong pig farm, and the Centre for Food Safety is investigating the source of the virus infection.

    Secretary for Food & Health Prof Sophia Chan says all pigs in Sheung Shui Slaughterhouse will be culled after African Swine Fever virus was found in a pig there.
    "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

  • #2
    African swine fever,
    Hong Kong (SAR - PRC)
    Information received on 12/05/2019 from Dr Thomas Sit, Chief Veterinary Officer / Assistant Director (Inspection & Quarantine), Agriculture, Fisheries and Conservation Department, Hong Kong Special Administrative Region Government, Hong Kong , Hong Kong (SAR - PRC)
    Summary
    Report type Immediate notification
    Date of start of the event 02/05/2019
    Date of confirmation of the event 10/05/2019
    Report date 12/05/2019
    Date submitted to OIE 12/05/2019
    Reason for notification First occurrence of a listed disease in the country
    Causal agent African swine fever virus
    Nature of diagnosis Laboratory (advanced)
    This event pertains to the whole country
    New outbreaks (1)
    Outbreak 1 Sheung Shui Slaughterhouse, New Territories, Hong Kong
    Date of start of the outbreak 02/05/2019
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Slaughterhouse
    Affected animals
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Swine 1 1
    Affected population Samples of kidney, liver, spleen and lymph node collected from an imported pig tested positive for African swine fever virus.
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Swine 1 1
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Swine ** ** ** **
    *Removed from the susceptible population through death, destruction and/or slaughter
    **Not calculated because of missing information
    Epidemiology
    Source of the outbreak(s) or origin of infection
    • Legal movement of animals
    Epidemiological comments This is the first occurrence of African swine fever in Hong Kong. An African swine fever surveillance system is in place for local pig farms, slaughterhouses, and wild boars in Hong Kong. The virus was detected in tissue samples collected from a condemned carcass of an imported pig tested as part of the laboratory quality management system. The slaughterhouse has been declared an infected place and operations suspended since announcement of the outbreak on 10 May 2019.
    Control measures
    Measures applied
    • Movement control inside the country
    • Surveillance outside containment and/or protection zone
    • Surveillance within containment and/or protection zone
    • Screening
    • Traceability
    • Disinfection
    • Ante and post-mortem inspections
    • Vaccination permitted (if a vaccine exists)
    • No treatment of affected animals
    Measures to be applied
    • Stamping out
    Diagnostic test results
    Laboratory name and type Species Test Test date Result
    Tai Lung Veterinary Laboratory, Agriculture, Fisheries & Conservation Department (National laboratory) Swine polymerase chain reaction (PCR) 10/05/2019 Positive
    Tai Lung Veterinary Laboratory, Agriculture, Fisheries & Conservation Department (National laboratory) Swine real-time PCR 10/05/2019 Positive
    The Pirbright Institute (OIE Reference Laboratory) Swine gene sequencing Pending
    The Pirbright Institute (OIE Reference Laboratory) Swine real-time PCR Pending
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
    ...
    "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

    Comment


    • #3
      African swine fever,
      Hong Kong (SAR - PRC)
      Information received on 05/06/2019 from Dr Thomas Sit, Chief Veterinary Officer / Assistant Director (Inspection & Quarantine), Agriculture, Fisheries and Conservation Department, Hong Kong Special Administrative Region Government, Hong Kong , Hong Kong (SAR - PRC)
      Summary
      Report type Immediate notification
      Date of start of the event 31/05/2019
      Date of confirmation of the event 31/05/2019
      Report date 05/06/2019
      Date submitted to OIE 05/06/2019
      Reason for notification Recurrence of a listed disease
      Date of previous occurrence 2019
      Manifestation of disease Clinical disease
      Causal agent African swine fever virus
      Nature of diagnosis Laboratory (advanced)
      This event pertains to the whole country
      New outbreaks (1)
      Outbreak 1 Sheung Shui Slaughterhouse, New Territories, Hong Kong
      Date of start of the outbreak 31/05/2019
      Outbreak status Continuing (or date resolved not provided)
      Epidemiological unit Slaughterhouse
      Affected animals
      Species Susceptible Cases Deaths Killed and disposed of Slaughtered
      Swine 4159 1 1 4158 0
      Affected population Samples of kidney, spleen and lymph node from an imported pig tested positive for African swine fever virus.
      Summary of outbreaks Total outbreaks: 1
      Total animals affected
      Species Susceptible Cases Deaths Killed and disposed of Slaughtered
      Swine 4159 1 1 4158 0
      Outbreak statistics
      Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
      Swine 0.02% 0.02% 100.00% 100.00%
      *Removed from the susceptible population through death, destruction and/or slaughter
      Epidemiology
      Source of the outbreak(s) or origin of infection
      • Legal movement of animals
      Epidemiological comments An African swine fever surveillance system is in place for local pig farms, slaughterhouses, and wild boars in Hong Kong. The virus was detected in tissue samples collected as part of the surveillance system from an imported pig that died in the slaughterhouse. The slaughterhouse has been declared an infected place and operations suspended since the announcement of the outbreak on 31 May 2019. Culling and carcass disposal were completed on 2 June 2019.
      Control measures
      Measures applied
      • Movement control inside the country
      • Surveillance outside containment and/or protection zone
      • Surveillance within containment and/or protection zone
      • Screening
      • Traceability
      • Quarantine
      • Official disposal of carcasses, by-products and waste
      • Stamping out
      • Disinfection
      • Ante and post-mortem inspections
      • Vaccination permitted (if a vaccine exists)
      • No treatment of affected animals
      Measures to be applied
      • No other measures
      Diagnostic test results
      Laboratory name and type Species Test Test date Result
      Tai Lung Veterinary Laboratory, Agriculture Fisheries and Conservation Department (National laboratory) Swine polymerase chain reaction (PCR) 31/05/2019 Positive
      Tai Lung Veterinary Laboratory, Agriculture Fisheries and Conservation Department (National laboratory) Swine real-time PCR 31/05/2019 Positive
      The Pirbright Institute (OIE Reference Laboratory) Swine gene sequencing Pending
      The Pirbright Institute (OIE Reference Laboratory) Swine real-time PCR Pending
      The Pirbright Institute (OIE Reference Laboratory) Swine virus isolation Pending
      Future Reporting
      The event is continuing. Weekly follow-up reports will be submitted.
      ...
      "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

      Comment


      • #4
        African swine fever,
        Hong Kong (SAR - PRC)
        Information received on 04/09/2019 from Dr Thomas Sit, Chief Veterinary Officer / Assistant Director (Inspection & Quarantine), Agriculture, Fisheries and Conservation Department, Hong Kong Special Administrative Region Government, Hong Kong , Hong Kong (SAR - PRC)
        Summary
        Report type Immediate notification
        Date of start of the event 03/09/2019
        Date of confirmation of the event 03/09/2019
        Report date 04/09/2019
        Date submitted to OIE 04/09/2019
        Reason for notification Recurrence of a listed disease
        Date of previous occurrence 02/06/2019
        Manifestation of disease Clinical disease
        Causal agent African swine fever virus
        Nature of diagnosis Laboratory (advanced), Necropsy
        This event pertains to the whole country
        New outbreaks (1)
        Outbreak 1 (19-11630, 19-11631, 19-11632) Sheung Shui Slaughterhouse, New Territories, Hong Kong
        Date of start of the outbreak 03/09/2019
        Outbreak status Resolved (03/09/2019)
        Epidemiological unit Slaughterhouse
        Affected animals
        Species Susceptible Cases Deaths Killed and disposed of Slaughtered
        Swine 3 3
        Affected population Samples of kidneys, spleens, lymph nodes, and tonsils from 3 imported pigs tested positive for African swine fever virus.
        Summary of outbreaks Total outbreaks: 1
        Total animals affected
        Species Susceptible Cases Deaths Killed and disposed of Slaughtered
        Swine 3 3
        Outbreak statistics
        Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
        Swine ** ** 100.00% **
        *Removed from the susceptible population through death, destruction and/or slaughter
        **Not calculated because of missing information
        Epidemiology
        Source of the outbreak(s) or origin of infection
        • Legal movement of animals
        Epidemiological comments An African swine fever surveillance system is in place for local pig farms, slaughterhouses, and wild boars in Hong Kong. The virus was detected in tissue samples collected as part of the surveillance system from 3 imported pigs that died in the slaughterhouse. A daily clearance arrangement has been implemented in the slaughterhouses. Lairages in different areas of the slaughterhouse are cleared out with thorough cleansing and disinfection every day. Cleaning and disinfection of vehicles transporting pigs have also been enhanced.
        Control measures
        Measures applied
        • Movement control inside the country
        • Surveillance outside containment and/or protection zone
        • Surveillance within containment and/or protection zone
        • Screening
        • Traceability
        • Quarantine
        • Official disposal of carcasses, by-products and waste
        • Stamping out
        • Disinfection
        • Slaughter
        • Ante and post-mortem inspections
        • Vaccination permitted (if a vaccine exists)
        • No treatment of affected animals
        Measures to be applied
        • No other measures
        Diagnostic test results
        Laboratory name and type Species Test Test date Result
        Tai Lung Veterinary Laboratory, Agriculture Fisheries and Conservation Department (National laboratory) Swine polymerase chain reaction (PCR) 03/09/2019 Positive
        Tai Lung Veterinary Laboratory, Agriculture Fisheries and Conservation Department (National laboratory) Swine real-time PCR 03/09/2019 Positive
        The Pirbright Institute (OIE Reference Laboratory) Swine real-time PCR Pending
        Future Reporting
        The event is continuing. Weekly follow-up reports will be submitted.
        ...
        "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

        Comment

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