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Missouri - 1 new outbreak of low pathogenic avian influenza H7N1 in commercial turkey in Jasper County (OIE, March 06, 2018)

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  • Missouri - 1 new outbreak of low pathogenic avian influenza H7N1 in commercial turkey in Jasper County (OIE, March 06, 2018)

    Low pathogenic avian influenza (poultry),
    United States of America
    Information received on 06/03/2018 from Dr John Clifford, Official Delegate, Chief Trade Advisor, Animal and Plant Health Inspection Service, United States Department of Agriculture, Washington, United States of America
    Summary
    Report type Immediate notification
    Date of start of the event 26/02/2018
    Date of confirmation of the event 03/03/2018
    Report date 06/03/2018
    Date submitted to OIE 06/03/2018
    Reason for notification Recurrence of a listed disease
    Date of previous occurrence 2017
    Manifestation of disease Sub-clinical infection
    Causal agent Low pathogenic avian influenza virus
    Serotype H7N1
    Nature of diagnosis Laboratory (advanced)
    This event pertains to a defined zone within the country
    New outbreaks (1)
    Outbreak 1 Jasper County, Jasper, MISSOURI
    Date of start of the outbreak 26/02/2018
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Farm
    Affected animals
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 20000 0 0 0
    Affected population Commercial meat turkey flock
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Killed and disposed of Slaughtered
    Birds 20000 ** 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 As part of routine, pre-slaughter testing and surveillance for H5/H7 Avian Influenza, H7N1 presumptive low pathogenic avian influenza (LPAI) was detected in a healthy commercial meat turkey flock based upon H7 PCR and antibody to H7 and N1; further characterization is pending virus recovery. There have been no clinical signs of illness or increased mortality on the premises. This is the first detection of H7 LPAI in commercial poultry in the United States for 2018. The turkeys will be depopulated through controlled marketing. The USDA Animal Plant Health Inspection Service (APHIS) and the Missouri Department of Agriculture are conducting a comprehensive epidemiological investigation and have implemented enhanced surveillance and testing related to this finding. Two additional commercial poultry premises located within the 10km zone were tested negative for influenza virus.
    Control measures
    Measures applied
    • Movement control inside the country
    • Surveillance outside containment and/or protection zone
    • Surveillance within containment and/or protection zone
    • Quarantine
    • Zoning
    • 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
    Missouri Department of Agriculture Veterinary Diagnostic Laboratory (Local laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 02/03/2018 Positive
    National Veterinary Services Laboratories (National laboratory) Birds haemagglutination inhibition test (HIT) 05/03/2018 Positive
    National Veterinary Services Laboratories (National laboratory) Birds neuraminidase inhibition assay 05/03/2018 Positive
    National Veterinary Services Laboratories (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 03/03/2018 Positive
    National Veterinary Services Laboratories (National laboratory) Birds virus isolation Pending
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.

  • #2
    Missouri turkey farm quarantined after bird flu detected

    POSTED 5:34 PM, MARCH 8, 2018, BY ASSOCIATED PRESS, UPDATED AT 05:33PM, MARCH 8, 2018

    ST. LOUIS (AP) ? The U.S. Department of Agriculture says the first commercial case of bird flu in the country this year has been confirmed at a turkey farm in southwestern Missouri.

    USDA spokeswoman Lyndsay Cole said Thursday that the H7N1 avian influenza, a low-pathogenic form, was detected through pre-slaughter testing on a farm in Jasper County that houses 20,000 turkeys. The state put the farm under quarantine.

    Cole says two other commercial poultry properties within 6 miles of the farm tested negative for influenza.
    ...
    ST. LOUIS (AP) – The U.S. Department of Agriculture says the first commercial case of bird flu in the country this year has been confirmed at a turkey farm in southwestern Missouri. USDA spok…
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