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Russia - 1 new outbreak of highly pathogenic avian influenza H5N2 in birds in farm, Kostromskaya Oblast (OIE, August 16, 2018)

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  • Russia - 1 new outbreak of highly pathogenic avian influenza H5N2 in birds in farm, Kostromskaya Oblast (OIE, August 16, 2018)

    Highly pathogenic avian influenza,
    Russia
    Information received on 16/08/2018 from Dr Nikolay Vlasov, Deputy Head of the Rosselkhoznadzor, Ministry of Agriculture, Ministry of Agriculture, Moscow, Russia
    Summary
    Report type Immediate notification
    Date of start of the event 09/08/2018
    Date of confirmation of the event 11/08/2018
    Report date 16/08/2018
    Date submitted to OIE 16/08/2018
    Reason for notification Recurrence of a listed disease
    Date of previous occurrence 13/03/2018
    Manifestation of disease Clinical disease
    Causal agent Highly pathogenic avian influenza virus
    Serotype H5N2
    Nature of diagnosis Clinical, Laboratory (advanced)
    This event pertains to a defined zone within the country
    New outbreaks (1)
    Outbreak 1 Harino, Kostromskoy, Kostromskaya Oblast
    Date of start of the outbreak 09/08/2018
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 498485 506 506 1223
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 498485 506 506 1223
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Birds 0.10% 0.10% 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 The virus isolate was identified as H5N2 subtype by PCR and nucleotide sequencing. The comparative analysis of the obtained nucleotide sequences of the H gene and N gene fragments revealed that the isolate belongs to the Asian genetic lineage of highly pathogenic avian influenza (Clade 2.3.4.4.) which spread in the Russian Federation as well as in Asian, European, Middle Eastern and African countries in 2016-2018. The hemagglutinin cleavage site has a –REKRRKRGLF- structure, characterizing the virus as potentially highly virulent.
    Control measures
    Measures applied
    • Movement control inside the country
    • Surveillance within containment and/or protection zone
    • Screening
    • Quarantine
    • Official disposal of carcasses, by-products and waste
    • Stamping out
    • Control of wildlife reservoirs
    • Disinfection
    • 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
    All-Russian Research Institute for Animal Health (OIE Reference Laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 11/08/2018 Positive
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
    ...
    http://www.oie.int/wahis_2/public/wa...reportid=27576
    "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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