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US, California - Wild duck HP H5N8 positive - Reported by California Waterfowl Association - Confirmed via OIE

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  • US, California - Wild duck HP H5N8 positive - Reported by California Waterfowl Association - Confirmed via OIE

    California Waterfowl

    Avian influenza news from the USDA: This week, as a result of increased surveillance in the Pacific flyway, USDA has confirmed the presence of HPAI in a wild duck in Butte County, California.

    The samples in California were collected from a hunter-harvested gadwall in Butte County, California, as part of increased wild bird surveillance. Testing by the California Animal Health and Food Safety Laboratory, a National Animal Health Laboratory Network (NAHLN) laboratory, was positive on H5 PCR, and the sequencing results were consistent with Eurasian H5N8.

    The National Veterinary Services Laboratories (NVSL) received the samples on December 31 and confirmed the presence of HPAI H5N8.

    This is the same HPAI H5N8 strain that was found in Washington gryfalcons and the Oregon backyard poultry flock. This is not an unexpected finding, given wild waterfowl migratory patterns in the Pacific flyway.




    https://www.facebook.com/CaliforniaW...coStateChapter

    via: http://www.refugeforums.com/refuge/s...d.php?t=984763
    “Addressing chronic disease is an issue of human rights – that must be our call to arms"
    Richard Horton, Editor-in-Chief The Lancet

    ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

  • #2
    Highly pathogenic avian influenza,
    United States of America
    Information received on 07/01/2015 from Dr John Clifford, Deputy Administrator, Animal and Plant Health Inspection Service, United States Department of Agriculture, Washington, United States of America
    Summary
    Report type Follow-up report No. 3
    Date of start of the event 10/12/2014
    Date of pre-confirmation of the event 14/12/2014
    Report date 07/01/2015
    Date submitted to OIE 07/01/2015
    Reason for notification Reoccurrence of a listed disease
    Date of previous occurrence 2004
    Manifestation of disease Clinical disease
    Causal agent Highly pathogenic avian influenza virus
    Serotype H5N8
    Nature of diagnosis Laboratory (advanced)
    This event pertains to a defined zone within the country
    Related reports Immediate notification (16/12/2014)
    Follow-up report No. 1 (19/12/2014)
    Follow-up report No. 2 (29/12/2014)
    Follow-up report No. 3 (07/01/2015)
    Outbreaks There are no new outbreaks in this report
    Epidemiology
    Source of the outbreak(s) or origin of infection
    • Contact with wild species
    Epidemiological comments The USDA Animal and Plant Health Inspection Service (APHIS), in conjunction with State Departments of Agriculture and Wildlife, are continuing to conduct a comprehensive epidemiological investigation and enhanced surveillance in response to the HPAI H5N8 wild bird related event. As part of the increased AI surveillance of wild birds (performed by testing hunter harvested birds), an H5N8 with an amino acid sequence at the HA cleavage site that is consistent with highly pathogenic avian influenza has been identified in a wild gadwall duck in the Pacific flyway. HA and NA sequence fragments are essentially identical to that found in the reported gyrfalcon. Update on the Oregon backyard premises as of 2 January 2015: • A 10 km active surveillance zone has been initiated for avian influenza. - All backyard premises with birds in the 10 km surveillance zone will be monitored and tested for AI. - There are no commercial poultry premises within the 10 km surveillance zone. • Cleaning and Disinfection (C&D) of the backyard premises has been completed. The backyard premises will be under a monitoring program and release of the quarantine will not occur for at least 90 days following depopulation and is contingent on post C&D environmental testing. • A thorough epidemiological investigation was conducted in relation to the backyard infected premises. No traces into or out of the infected flock were found and it was determined that the AI H5N8 event was related to wild bird exposure. The HPAI H5N8 virus has NOT been found in commercial poultry anywhere in the United States.
    Control measures
    Measures applied
    • Stamping out
    • Quarantine
    • Movement control inside the country
    • Disinfection of infected premises/establishment(s)
    • Vaccination prohibited
    • No treatment of affected animals
    Measures to be applied
    • No other measures
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
    OIE

    “Addressing chronic disease is an issue of human rights – that must be our call to arms"
    Richard Horton, Editor-in-Chief The Lancet

    ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

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