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Taiwan: 2022-2024 Bird flu HP H5N1, H5N2, H5N5 in poultry

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  • #46
    Chinese Taipei - High pathogenicity avian influenza viruses (poultry) (Inf. with) - Follow up report 4


    GENERAL INFORMATION

    COUNTRY/TERRITORY OR ZONE
    ZONE

    ANIMAL TYPE
    TERRESTRIAL

    DISEASE CATEGORY
    Listed disease

    EVENT ID
    5370

    DISEASE
    High pathogenicity avian influenza viruses (poultry) (Inf. with)

    CAUSAL AGENT
    Highly pathogenic avian influenza virus

    GENOTYPE / SEROTYPE / SUBTYPE
    H5N1

    START DATE
    2023/11/22

    REASON FOR NOTIFICATION
    Recurrence of an eradicated strain

    DATE OF LAST OCCURRENCE
    2023/11/17

    CONFIRMATION DATE
    2023/11/25

    EVENT STATUS
    On-going

    END DATE- SELF-DECLARATION

    NO REPORT INFORMATION

    REPORT NUMBER
    Follow-up report 4

    REPORT ID
    FUR_166725

    REPORT REFERENCE- REPORT DATE
    2024/04/09

    REPORT STATUS
    Validated

    NO EVOLUTION REPORT

    EPIDEMIOLOGY

    SOURCE OF EVENT OR ORIGIN OF INFECTION
    • Unknown or inconclusive
    EPIDEMIOLOGICAL COMMENTS
    The samples from Nantou County, Pingtung County, Taoyuan City, Yunlin County, Changhua County, Taichung City and Tainan City were sent to the National Laboratory, Veterinary Research Institute (VRI), for diagnosis. Highly pathogenic avian influenza H5N1 subtype was confirmed by VRI. The infected farms have been placed under movement restriction. All animals on the infected farms have been culled. Thorough cleaning and disinfection have been conducted after stamping out operation. Surrounding poultry farms within 3 km radius of the infected farms are under intensified surveillance for three months.

    QUANTITATIVE DATA SUMMARY

    MEASURING UNIT
    Animal

    SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Birds (DOMESTIC)NEW31708070963709522459282000TOTAL408495 80998809473273482000

    DIAGNOSTIC DETAILS

    CLINICAL SIGNS
    YES

    METHOD OF DIAGNOSTIC
    Diagnostic test, Clinical
    Gene sequencing Veterinary Research Institute (VRI), MOA Birds 32 2023/11/25 2024/03/21 Positive
    Reverse transcription-polymerase chain reaction (RT-PCR) Veterinary Research Institute (VRI), MOA Birds 32 2023/11/24 2024/03/20 Positive
    ​https://wahis.woah.org/#/in-review/5370

    Comment

    • #47
      16,825 chickens at Xuejia Chicken Farm in Tainan City were culled after confirmed cases of avian influenza


      2024-04-16 10:54:29

      Huaxia Jingwei.com, April 16: According to Taiwan's "China Times News Network", the Animal Protection Department of the Tainan City Government received reports on the 12th that there were abnormal deaths of laying hens in the local chicken farm in Xuejia District, and it was diagnosed as H5N1 subtype. After the outbreak of highly pathogenic avian influenza, the Animal Protection Department completed the culling of 16,825 eggs on the 15th and destroyed the eggs on the premises. All were transported to the incinerator for destruction and the entire site was disinfected. This is the sixth case of avian influenza in Tainan so far this year. Case.
      The Animal Welfare Department stated that it has conducted sampling and monitoring of 6 poultry farms within a radius of 1 kilometer around the culling site, and visited and inspected 42 poultry farms within 1 to 3 kilometers. At the same time, it has strengthened the management and control of abnormal numbers of dead animals in the culling farms and continued to dispatch dispatches. Disinfection trucks increase the frequency of disinfection of public areas around the culling site to minimize viruses in the environment.
      The Animal Welfare Department stated that now is the season for migratory and wild birds to return north, and local cases of avian influenza have occurred sporadically in Taiwan. So far this year, a total of 30 cases of avian influenza have occurred in Taiwan, indicating that there is still a threat of avian influenza viruses in the environment, coupled with the large temperature difference between day and night. , can easily cause poultry stress, and we call on poultry farmers to be more vigilant and strengthen epidemic prevention work to reduce the chance of virus invasion.

      z​https://www.huaxia.com/c/2024/04/16/1909229.shtml

      Comment

      • #48
        Chinese Taipei - High pathogenicity avian influenza viruses (poultry) (Inf. with) - Follow up report 5


        GENERAL INFORMATION

        COUNTRY/TERRITORY OR ZONE
        ZONE

        ANIMAL TYPE
        TERRESTRIAL

        DISEASE CATEGORY
        Listed disease

        EVENT ID
        5370

        DISEASE
        High pathogenicity avian influenza viruses (poultry) (Inf. with)

        CAUSAL AGENT
        Highly pathogenic avian influenza virus

        GENOTYPE / SEROTYPE / SUBTYPE
        H5N1

        START DATE
        2023/11/22

        REASON FOR NOTIFICATION
        Recurrence of an eradicated strain

        DATE OF LAST OCCURRENCE
        2023/11/17

        CONFIRMATION DATE
        2023/11/25

        EVENT STATUS
        On-going

        END DATE- SELF-DECLARATION

        NO REPORT INFORMATION

        REPORT NUMBER
        Follow-up report 5

        REPORT ID
        FUR_167304

        REPORT REFERENCE- REPORT DATE
        2024/05/16

        REPORT STATUS
        Validated

        NO EVOLUTION REPORT

        EPIDEMIOLOGY

        SOURCE OF EVENT OR ORIGIN OF INFECTION
        • Unknown or inconclusive
        EPIDEMIOLOGICAL COMMENTS
        Samples from Yunlin County, Chiayi County, Taipei City, Changhua County, and Tainan City were sent to the National Laboratory, Veterinary Research Institute (VRI), for diagnosis. Highly pathogenic avian influenza H5N1 subtype was confirmed by VRI. The infected farms have been placed under movement restrictions. All animals on the infected farms have been culled. Thorough cleaning and disinfection have been conducted after stamping out operation. Surrounding poultry farms within 3 km radius of the infected farms are under intensified surveillance for three months.

        QUANTITATIVE DATA SUMMARY

        MEASURING UNIT
        Animal

        SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Birds (DOMESTIC)NEW130376121961219311818300TOTAL53887193 194931404455312000
        \
        DIAGNOSTIC DETAILS

        CLINICAL SIGNS
        YES

        METHOD OF DIAGNOSTIC
        Clinical, Diagnostic test
        Reverse transcription-polymerase chain reaction (RT-PCR) Veterinary Research Institute (VRI), MOA Birds 39 2023/11/24 2024/04/14 Positive
        Gene sequencing Veterinary Research Institute (VRI), MOA Birds 39 2023/11/25 2024/04/15 Positive
        WAHIS
        https://wahis.woah.org/#/in-review/5370



        NEW OUTBREAKS

        OB_134541 - 2024-TN-7 - XUEJIA DIST.

        OB_134540 - 2024-TN-6 - HOUBI DIST.

        OB_134539 - 2024-CH-3 - FANGYUAN TOWNSHIP

        OB_134538 - 2024-TP-1 - WANHUA DIST.

        OB_134537 - 2024-CY-2 - MINXIONG TOWNSHIP

        OB_134536 - 2024-YL-16 - BAOZHONG TOWNSHIP

        OB_134535 - 2024-YL-15 - CITONG TOWNSHIP​

        Comment

        • #49
          Chinese Taipei - High pathogenicity avian influenza viruses (poultry) (Inf. with) - Follow up report 6


          GENERAL INFORMATION

          COUNTRY/TERRITORY OR ZONE
          ZONE

          ANIMAL TYPE
          TERRESTRIAL

          DISEASE CATEGORY
          Listed disease

          EVENT ID
          5370

          DISEASE
          High pathogenicity avian influenza viruses (poultry) (Inf. with)

          CAUSAL AGENT
          Highly pathogenic avian influenza virus

          GENOTYPE / SEROTYPE / SUBTYPE
          H5N1

          START DATE
          2023/11/22

          REASON FOR NOTIFICATION
          Recurrence of an eradicated strain

          DATE OF LAST OCCURRENCE
          2023/11/17

          CONFIRMATION DATE
          2023/11/25

          EVENT STATUS
          On-going

          END DATE- SELF-DECLARATION

          NO REPORT INFORMATION

          REPORT NUMBER
          Follow-up report 6

          REPORT ID
          FUR_167792

          REPORT REFERENCE- REPORT DATE
          2024/06/19

          REPORT STATUS
          Validated

          NO EVOLUTION REPORT

          EPIDEMIOLOGY

          SOURCE OF EVENT OR ORIGIN OF INFECTION
          • Unknown or inconclusive
          EPIDEMIOLOGICAL COMMENTS
          The samples from Yunlin County were sent to the National Laboratory, Veterinary Research Institute (VRI), for diagnosis. Highly pathogenic avian influenza H5N1 subtype was confirmed by VRI. The infected farm 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 farms are under intensified surveillance for three months.

          QUANTITATIVE DATA SUMMARY

          MEASURING UNIT
          Animal

          SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Birds (DOMESTIC)NEW5722223500TOTAL5389289321693162445566 2000

          DIAGNOSTIC DETAILS

          CLINICAL SIGNS
          YES

          METHOD OF DIAGNOSTIC
          Clinical, Diagnostic test
          Reverse transcription-polymerase chain reaction (RT-PCR) Veterinary Research Institute (VRI), MOA Birds 40 2023/11/24 2024/05/23 Positive
          Gene sequencing Veterinary Research Institute (VRI), MOA Birds 40 2023/11/25 2024/05/24 Positive
          ​https://wahis.woah.org/#/in-review/5370

          Comment

          • #50
            Chinese Taipei - High pathogenicity avian influenza viruses (poultry) (Inf. with) - Immediate notification


            GENERAL INFORMATION

            COUNTRY/TERRITORY OR ZONE
            ZONE

            ANIMAL TYPE
            TERRESTRIAL

            DISEASE CATEGORY
            Listed disease

            EVENT ID
            5764

            DISEASE
            High pathogenicity avian influenza viruses (poultry) (Inf. with)

            CAUSAL AGENT
            Highly pathogenic avian influenza virus

            GENOTYPE / SEROTYPE / SUBTYPE
            H5N1

            START DATE
            2024/06/29

            REASON FOR NOTIFICATION
            Recurrence of an eradicated strain

            DATE OF LAST OCCURRENCE
            2024/06/25

            CONFIRMATION DATE
            2024/07/04

            EVENT STATUS
            On-going

            END DATE- SELF-DECLARATION

            NO REPORT INFORMATION

            REPORT NUMBER
            Immediate notification

            REPORT ID
            IN_168261

            REPORT REFERENCE
            2024-HPAIpoultry-1

            REPORT DATE
            2024/07/19

            REPORT STATUS
            Validated

            NO EVOLUTION REPORT

            EPIDEMIOLOGY

            SOURCE OF EVENT OR ORIGIN OF INFECTION
            • Unknown or inconclusive
            EPIDEMIOLOGICAL COMMENTS
            This outbreak indicates the recurrence of highly pathogenic avian influenza (HPAI) H5N1 subtype (clade 2.3.4.4b) in two poultry farms in Chinese Taipei. The owner of these two farms reported the situation to the local veterinary authority in Yunlin County, and samples were collected on June 29. The samples were sent to the National Reference Laboratory for diagnosis on July 1. Clinical signs included increased mortality rates, reduced appetite, and decreased egg production. The outbreak was confirmed as HPAI on July 4. Subsequently, 43,602 chickens were culled, and comprehensive cleaning and disinfection were conducted on July 6. Farms within a 3-kilometer radius of this location will undergo heightened surveillance for the next 28 days.

            QUANTITATIVE DATA SUMMARY

            MEASURING UNIT
            Animal

            SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Birds (DOMESTIC)NEW53140953895384360200TOTAL531409538953 84360200

            DIAGNOSTIC DETAILS

            CLINICAL SIGNS
            YES

            METHOD OF DIAGNOSTIC
            Diagnostic test
            Reverse transcription-polymerase chain reaction (RT-PCR) Veterinary Research Institute (VRI), MOA Birds 2 2024/07/03 2024/07/03 Positive
            Gene sequencing Veterinary Research Institute (VRI), MOA Birds 2 2024/07/04 2024/07/04 Positive
            ​https://wahis.woah.org/#/in-review/5764

            Comment

            • #51
              Click image for larger version Name: image.png Views: 19 Size: 93.0 KB ID: 996269​Click image for larger version Name: image.png Views: 17 Size: 101.5 KB ID: 996270​https://wahis.woah.org/#/in-review/5764

              Comment

              • #52
                Click image for larger version Name: image.png Views: 11 Size: 94.8 KB ID: 997097​Click image for larger version Name: image.png Views: 8 Size: 91.5 KB ID: 997098​https://wahis.woah.org/#/in-review/5764

                Comment

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