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Iran - 2 new outbreaks of highly pathogenic avian influenza H5N8 in commercial layers, Tehran (OIE, November 21, 2016)

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  • Iran - 2 new outbreaks of highly pathogenic avian influenza H5N8 in commercial layers, Tehran (OIE, November 21, 2016)

    Highly pathogenic avian influenza,
    Iran
    Information received on 21/11/2016 from Dr Mehdi Khalaj, Head of IVO, Iran Veterinary Organization (IVO), Iran Veterinary Organization, Ministry of Jihad-e-Agriculture, Tehran, Iran
    Summary
    Report type Immediate notification
    Date of start of the event 14/11/2016
    Date of confirmation of the event 19/11/2016
    Report date 21/11/2016
    Date submitted to OIE 21/11/2016
    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
    New outbreaks (2)
    Outbreak 1 Tohid Farm, Amirabad Tavanbakhshi, Malard, TEHRAN
    Date of start of the outbreak 14/11/2016
    Outbreak status Resolved (19/11/2016)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 50621 13355 4455 46166 0
    Affected population Commercial layers
    Outbreak 2 Fatem2 Farm, Akhtarabad, Malard, TEHRAN
    Date of start of the outbreak 14/11/2016
    Outbreak status Resolved (19/11/2016)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 232840 47510 1128 231712 0
    Affected population Commercial layers
    Summary of outbreaks Total outbreaks: 2
    Total animals affected
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 283461 60865 5583 277878 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Birds 21.47% 1.97% 9.17% 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 1- The event was reported according to the Iran Passive surveillance in place 2- A post outbreak investigation to trace the source of infection is ongoing to detect the probable spread and circulation of this subtype. 3- Active surveillance is ongoing.
    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
    Laboratory of Tehran Province (Local laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 18/11/2016 Positive
    Central Veterinary Laboratory (National laboratory) Birds gene sequencing 21/11/2016 Positive
    Central Veterinary Laboratory (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 19/11/2016 Positive
    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
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