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#Analysis of recent #scientific #information on #avian #influenza A(#H7N9) virus - 10 February 2017 (@WHO, edited)

  Title : #Analysis of recent #scientific #information on #avian #influenza A(#H7N9) virus - 10 February 2017. Subject : Avian Influenza, ...

20 Dec 2016

Highly pathogenic #avian #influenza #H5N8, #Iran [two #poultry #outbreaks] (#OIE, Dec. 20 ‘16)

 

Title: Highly pathogenic #avian #influenza #H5N8, #Iran [two #poultry #outbreaks].

Subject: Avian Influenza, H5N8 subtype, wild birds and poultry epizootics in Iran.

Source: OIE, full page: (LINK).

Code: [     ][     ]

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Highly pathogenic avian influenza H5N8, Iran

Information received on 20/12/2016 from Dr Mehdi Khalaj, Head of IVO, Iran Veterinary Organization (IVO), Iran Veterinary Organization, Ministry of Jihad-e-Agriculture, Tehran, Iran

  • Summary
    • Report type Follow-up report No. 3
    • Date of start of the event 14/11/2016
    • Date of confirmation of the event 19/11/2016
    • Report date 18/12/2016
    • Date submitted to OIE 20/12/2016
    • Reason for notification New strain of a listed disease in the country
    • Causal agent Highly pathogenic avian influenza virus
    • Serotype H5N8
    • Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
    • This event pertains to the whole country
    • Related reports
      • Immediate notification (21/11/2016) / Follow-up report No. 1 (26/11/2016) / Follow-up report No. 2 (03/12/2016) / Follow-up report No. 3 (18/12/2016)
  • New outbreaks (4)
    • Outbreak 1 - Yusefi Farm, Mahtab, Qom, QOM
      • Date of start of the outbreak 03/12/2016
      • Outbreak status Resolved (06/12/2016)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds – 119579 – 50000 – 75 – 119504 – 0
          • Affected population commercial layer
    • Outbreak 2 - Simorghetokhmtala Farm, Khosroshahr, Tabriz, EAST AZARBAYEJAN
      • Date of start of the outbreak 06/12/2016
      • Outbreak status Resolved (09/12/2016)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds – 53000 – 18000 – 463 – 52537 – 0
          • Affected population commercial layer
    • Outbreak 3 - Mighan wetland, Arak, Arak, MARKAZI
      • Date of start of the outbreak 06/12/2016
      • Outbreak status Resolved (09/12/2016)
      • Epidemiological unit Not applicable
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Bean Goose:Anser fabalis(Anatidae) – … – 37 -  37 – 0 – 0
        • Greater Flamingo:Phoenicopterus roseus(Phoenicopteridae) – … – 1 – 1 – 0 – 0
        • Ardeidae (unidentified):Ardeidae (incognita)(Ardeidae) – … – 1 – 1 – 0 – 0
        • Gruidae (unidentified):Gruidae (incognita)(Gruidae) – … – 3 – 3 – 0 – 0
        • Laridae (unidentified):Laridae (incognita)(Laridae) – … – 1 – 1 – 0 – 0
    • Outbreak 4 - Miankale wetlan, Amir Ababd, Behshahr, MAZANDARAN
      • Date of start of the outbreak 07/12/2016
      • Outbreak status Resolved (10/12/2016)
      • Epidemiological unit Natural park
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Tufted Duck:Aythya fuligula(Anatidae) – … – 1 -  1 – 0 – 0
        • Little Grebe:Tachybaptus ruficollis(Podicipedidae) – … – 1 – 1 – 0 – 0
        • Phoenicopteridae (unidentified):Phoenicopteridae (incognita)(Phoenicopteridae) – … – 2 -  - 2 – 0 – 0
    • Summary of outbreaks
      • Total outbreaks: 4
        • Total animals affected: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds – 172579 – 68000 – 538 – 172041 – 0
          • Bean Goose:Anser fabalis(Anatidae) – … – 37 – 37 – 0 – 0
          • Greater Flamingo:Phoenicopterus roseus(Phoenicopteridae) – … – 1 – 1 – 0 – 0
          • Ardeidae (unidentified):Ardeidae (incognita)(Ardeidae) – … – 1 – 1 – 0 – 0
          • Gruidae (unidentified):Gruidae (incognita)(Gruidae) – … – 3 – 3 – 0 – 0
          • Laridae (unidentified):Laridae (incognita)(Laridae) – … – 1  - 1 – 0 – 0
          • Tufted Duck:Aythya fuligula(Anatidae) – … – 1 – 1 – 0 – 0
          • Little Grebe:Tachybaptus ruficollis(Podicipedidae) – … – 1 – 1 – 0 – 0
          • Phoenicopteridae (unidentified):Phoenicopteridae (incognita)(Phoenicopteridae) – … – 2 – 2 – 0 – 0
        • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
          • Birds - 39.40% - 0.31% - 0.79% - 100.00%
          • Bean Goose:Anser fabalis(Anatidae) – ** – ** - 100.00% – **
          • Greater Flamingo:Phoenicopterus roseus(Phoenicopteridae) – ** – ** -  100.00% – **
          • Ardeidae (unidentified):Ardeidae (incognita)(Ardeidae) – ** – ** - 100.00% – **
          • Gruidae (unidentified):Gruidae (incognita)(Gruidae) – ** – ** - 100.00% – **
          • Laridae (unidentified):Laridae (incognita)(Laridae) – ** – ** - 100.00% – **
          • Tufted Duck:Aythya fuligula(Anatidae) – ** – ** - 100.00% – **
          • Little Grebe:Tachybaptus ruficollis(Podicipedidae) – ** – ** - 100.00% – **
          • Phoenicopteridae (unidentified):Phoenicopteridae (incognita)(Phoenicopteridae) – ** – ** - 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
      • Unknown or inconclusive
  • Epidemiological comments
    • 1- These new outbreaks were detected under the ongoing Avian influenza surveillance program.
    • 2- A post outbreak investigation to trace the source of infection is ongoing to detect the probable spread and circulation of this sub-type.
    • 3- Active surveillance is ongoing.
    • 4- Epidemiological investigation is ongoing and as preemptive control measures, 523.000 birds at farms located in a three-kilometer radius around the affected farms have been slaughtered following confirmed negative result for HPAI.
  • Control measures
    • Measures applied
      • Screening
      • Disinfection / Disinfestation
      • Quarantine
      • Stamping out
      • Official disposal of carcasses, by-products and waste
      • Surveillance within containment and/or protection zone
      • Control of wildlife reservoirs
      • Zoning
      • Vaccination prohibited
      • No treatment of affected animals
    • Measures to be applied
      • Surveillance outside containment and/or protection zone
  • Diagnostic test results
    • Laboratory name and type – Species – Test - Test date – Result
      • IVO Central Veterinary Laboratory (National laboratory) - Ardeidae (unidentified) - real-time PCR - 07/12/2016 – Positive
      • IVO Central Veterinary Laboratory (National laboratory) - Bean Goose - real-time PCR - 07/12/2016 – Positive
      • IVO Central Veterinary Laboratory (National laboratory) – Birds - real-time PCR - 07/12/2016 – Positive
      • IVO Central Veterinary Laboratory (National laboratory) – Birds - real-time PCR - 07/12/2016 – Positive
      • IVO Central Veterinary Laboratory (National laboratory) - Greater Flamingo - real-time PCR - 07/12/2016 – Positive
      • IVO Central Veterinary Laboratory (National laboratory) - Gruidae (unidentified) - real-time PCR - 07/12/2016 – Positive
      • IVO Central Veterinary Laboratory (National laboratory) - Laridae (unidentified) - real-time PCR - 07/12/2016 – Positive
      • IVO Central Veterinary Laboratory (National laboratory) - Little Grebe - real-time PCR - 08/12/2016 – Positive
      • IVO Central Veterinary Laboratory (National laboratory) - Phoenicopteridae (unidentified) - real- time PCR - 08/12/2016 – Positive
      • IVO Central Veterinary Laboratory (National laboratory) - Tufted Duck - real-time PCR - 08/12/2016 – Positive
  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.

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Keywords: OIE; Updates; H5N8; Avian Influenza; Poultry; Wild Birds; Iran.

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