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  Title : #Avian #Influenza #H7N9 in #China: Preventing the Next #SARS. Subject : Avian Influenza, H7N9 subtype (Asian Lineage), poultry e...

21 Dec 2016

Highly pathogenic #avian #influenza #H5N6, #Japan [#poultry #outbreaks] (#OIE, Dec. 21 ‘16)

 

Title: Highly pathogenic #avian #influenza #H5N6, #Japan [#poultry #outbreaks].

Subject: Avian Influenza, H5N6 subtype, poultry epizootics in Japan.

Source: OIE, full page: (LINK).

Code: [     ]

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Highly pathogenic avian influenza H5N6, Japan

Information received on 21/12/2016 from Dr Kazuo Ito, Director, International Animal Health Affairs Office, Animal Health Division, Food Safety and Consumer Affairs Bureau, Ministry of Agriculture, Forestry and Fisheries, Tokyo, Japan

  • Summary
    • Report type Follow-up report No. 2
    • Date of start of the event 28/11/2016
    • Date of confirmation of the event 28/11/2016
    • Report date 19/12/2016
    • Date submitted to OIE 21/12/2016
    • Reason for notification Reoccurrence of a listed disease
    • Date of previous occurrence 17/02/2015
    • Manifestation of disease Clinical disease
    • Causal agent Highly pathogenic avian influenza virus
    • Serotype H5N6
    • Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced)
    • This event pertains to the whole country
    • Related reports
      • Immediate notification (29/11/2016) / Follow-up report No. 1 (05/12/2016) / Follow-up report No. 2 (19/12/2016)
  • New outbreaks (2)
    • Outbreak 1 - Shimizu-cho, HOKKAIDO
      • Date of start of the outbreak 16/12/2016
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds – 283982 – 30 – 30 – 283952 – 0
          • Affected population Poultry (layers)
    • Outbreak 2 - Kawaminami-cho, MIYAZAKI
      • Date of start of the outbreak 19/12/2016
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds – 122000 – 100 – 100 – 121900 – 0
          • Affected population poultry (broilers)
    • Summary of outbreaks
      • Total outbreaks: 2
        • Total animals affected: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds – 405982 – 130 – 130 – 405852 – 0
        • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
          • Birds - 0.03% - 0.03% - 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
      • Unknown or inconclusive
  • Epidemiological comments
    • Outbreak 2 (Niigata, Sekikawa-mura) –follow up information of the previous reports.
      • On 20 December 2016 shipment restrictions were lifted as there were not any positive results of the tests conducted after control measures had been completed.
    • Outbreak 1 (Aomori), Outbreak 3 (Niigata, Joetsu-shi) and Outbreak 4 (Aomori, 2nd case) –follow up information of the previous report:
      • On 21 December 2016 shipment restrictions were lifted as there were not any positive results of the tests conducted after control measures had been completed.
    • Outbreak 5 (Hokkaido, Shimizu-cho) –this report On 16 November 2016:
      • the local veterinary service centre in Hokkaido Prefecture received a notification from a domestic hens farm on increase the numbers of dead birds (30 birds on the day).
      • The samples from dead birds were confirmed to be influenza A virus positive by antigen-capture kits and to be subtype H5 by RT-PCR in Tokachi Livestock Hygiene Service Centre.
      • The N-type was identified as N6 by NIAH on 20 November 2016.
      • Destruction of all the susceptible birds in the affected farm has been completed.
      • Movement and shipment restrictions are imposed on the farms within a radius of 3km and within a radius of 3-10km of the affected farm, respectively.
    • Outbreak 6 (Miyazaki, Kawaminami-cho) -this report:
      • On 19 November 2016, the local veterinary service centre in Miyazaki Prefecture received a notification from a domestic broilerss farm on increase the numbers of dead birds (100 birds on the day).
      • The samples from dead birds were confirmed to be influenza A virus positive by antigen-capture kits and to be subtype H5 by RT-PCR in Miyazaki Livestock Hygiene Service Centre.
      • Destruction of all the susceptible birds in the affected farm has been completed.
      • Movement and shipment restrictions are imposed on the farms within a radius of 3km and within a radius of 3-10km of the affected farm, respectively.
  • Control measures
    • Measures applied
      • Movement control inside the country
      • Screening
      • Disinfection / Disinfestation
      • Quarantine
      • Stamping out
      • 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
      • Miyazaki Livestock Hygiene Service Centre (Local laboratory) – Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 19/12/2016 – Positive
      • Miyazaki Livestock Hygiene Service Centre (Local laboratory) – Birds - rapid tests - 19/12/2016 – Positive
      • Tokachi Livestock Hygiene Service Centre (Local laboratory) – Birds - rapid tests - 16/12/2016 – Positive
      • Tokachi Livestock Hygiene Service Centre (Local laboratory) – Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 16/12/2016 – Positive
      • the National Institute of Animal Health (National laboratory) – Birds - gene sequencing - 20/12/2016 – Positive
  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.

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Keywords: OIE; Updates; H5N6; Avian Influenza; Poulty; Japan.

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