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France - 1 new outbreak of low pathogenic avian influenza H7N7 in a breeding farm with mallard ducks, Arthies, Val-D'Oise (OIE, July 9, 2018)

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  • France - 1 new outbreak of low pathogenic avian influenza H7N7 in a breeding farm with mallard ducks, Arthies, Val-D'Oise (OIE, July 9, 2018)

    Low pathogenic avian influenza (poultry),
    France
    Information received on 09/07/2018 from Dr Loic Evain, Directeur Général adjoint, CVO, Direction générale de l'alimentation, Ministère de l'Agriculture et de l'Alimentation, Paris, France
    Summary
    Report type Immediate notification
    Date of start of the event 06/06/2018
    Date of confirmation of the event 11/06/2018
    Report date 09/07/2018
    Date submitted to OIE 09/07/2018
    Reason for notification Recurrence of a listed disease
    Date of previous occurrence 25/01/2017
    Manifestation of disease Sub-clinical infection
    Causal agent Low pathogenic avian influenza virus
    Serotype H7N7
    Nature of diagnosis Laboratory (advanced)
    This event pertains to a defined zone within the country
    New outbreaks (1)
    Outbreak 1 (H7N7-1) Arthies, Arthies, Val-D'Oise
    Date of start of the outbreak 06/06/2018
    Outbreak status Resolved (05/07/2018)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 10000 0 0 0
    Affected population Samples taken in a farm with mallard ducks, in the framework of the planned surveillance. The national reference laboratory confirmed the presence of low pathogenic H7N7 virus on 08/06/2018 in ducklings born this year. The animals were put under containment and a new series of assays showed the absence of viral excretion on 05/07/2018.
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 10000 ** 0 0 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Birds ** 0.00% ** 0.00%
    *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 A breeding farm with mallard ducks was tested, in the framework of the national surveillance of avian influenza. The batch of ducklings was confirmed positive to low pathogenic H7N7 virus. The animals did not show any symptoms. They were put under containment and new assays performed three weeks later showed the absence of viral excretion. Once the batch is dispatched, the breeding facilities will be subjected to cleaning and disinfection, then to fallowing, as per the legislation.
    Control measures
    Measures applied
    • Surveillance within containment and/or protection zone
    • Screening
    • 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
    Labocea, Ploufragan (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 05/07/2018 Negative
    National Reference Laboratory, Ploufragan (National laboratory) Birds nucleotide sequencing 11/06/2018 Positive
    National Reference Laboratory, Ploufragan (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 11/06/2018 Positive
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
    ...
    http://www.oie.int/wahis_2/public/wa...reportid=26874
    "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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