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Low pathogenic avian influenza (poultry) H5, United States of America (OIE, April 23 2014): 1 New Outbreak, California

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  • Low pathogenic avian influenza (poultry) H5, United States of America (OIE, April 23 2014): 1 New Outbreak, California

    [Source: OIE, full page: (LINK). Edited.]


    Low pathogenic avian influenza (poultry) H5, United States of America


    Information received on 22/04/2014 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 Immediate notification
      • Date of start of the event 14/04/2014
      • Date of pre-confirmation of the event 18/04/2014
      • Report date 22/04/2014
      • Date submitted to OIE 22/04/2014
      • Reason for notification Reoccurrence of a listed disease
      • Date of previous occurrence 06/08/2013
      • Manifestation of disease Clinical disease
      • Causal agent Low pathogenic avian influenza virus
      • Serotype H5
      • Nature of diagnosis Laboratory (advanced)
      • This event pertains to a defined zone within the country
    • New outbreaks (1)
      • Outbreak 1 - Stanislaus County, Stanislaus, CALIFORNIA
        • Date of start of the outbreak 14/04/2014
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species Susceptible Cases Deaths Destroyed Slaughtered
          • Birds - 116000 -
          • Affected population:
            • The affected premises is a commercial Japanese quail (Coturnix japonica) layer flock.
            • The quail flock consists of two (2) houses.
            • The affected layer house contains approximately 56,000 adult quail.
            • The brooder house contains approximately 39,000 quail.
            • There are nine (9) additional houses on the premises that house Peking ducks for egg production and contain approximately 21,000 ducks.
    • Summary of outbreaks
      • Total outbreaks: 1
        • Total animals affected: Species Susceptible Cases Deaths Destroyed Slaughtered
          • Birds 116000 **
          • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
            • Birds ** ** ** **
            • *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 USDA Animal Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA) are conducting a comprehensive epidemiological investigation of this event.
      • Epidemiological summary of the event as of 22 April 2014:
        • A commercial Japanese quail (Coturnix japonica) layer flock was experiencing increased mortality in the adult laying population.
        • Samples were submitted for laboratory testing and were confirmed positive for influenza A virus (IAV) subtype H5.
        • The amino acid sequence at the hemagglutinin protein cleavage site of the laboratory specimen is compatible with North American low pathogenic avian influenza virus.
        • The sequence is 99.1% similar to A/American green-winged teal/Wisconsin 10OS3127/2010.
        • The index premises and two epidemiologically linked premises were placed under quarantine. o Laboratory testing for influenza A virus (IAV) on the two epidemiologically linked premises was negative for IAV.
        • Depopulation of adult quail on affected premises began.
        • The epidemiological investigation and response to the event are continuing.
      • Note by the OIE Animal Health Information Department:
        • H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 10.4. on avian influenza of the Terrestrial Animal Health Code (2013).
    • Control measures
      • Measures applied
        • Stamping out
        • Quarantine
        • 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
        • California Animal Health and Food Safety (CAHFS) Laboratory (Local laboratory) Birds - real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) - 18/04/2014 Positive
        • California Animal Health and Food Safety (CAHFS) Laboratory (Local laboratory) Birds - real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) - 19/04/2014 Negative
        • National Veterinary Services Laboratories (NVSL) (National laboratory) Birds - real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) - 19/04/2014 Positive
        • National Veterinary Services Laboratories (NVSL) (National laboratory) Birds - virus isolation - Pending
    • Future Reporting
      • The event is continuing. Weekly follow-up reports will be submitted.
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  • #2
    Re: Low pathogenic avian influenza (poultry) H5, United States of America (OIE, April 23 2014): 1 New Outbreak, California

    [Source: Bloomberg, full page: (LINK).]


    Bird Flu Found on California Quail Farm Spurs Export Bans

    The disease known as bird flu has been found on a quail farm in California, prompting countries including Russia to ban poultry shipments from the state.

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    Comment


    • #3
      Low-pathogenic H5 Avian Flu in California Quail

      CALIFORNIA, US - Low-pathogenic avian influenza (LPAI) of the H5 subtype has been identified as the cause of increased mortality in a commercial flock of Japanese quail in central California.

      The veterinary authority sent an Immediate Notification dated 22 April to the World Organisation for Animal Health (OIE).

      The report describes an outbreak of LPAI in Stanislaus County, California, starting on 14 April. The affected premises is a commercial Japanese quail (Coturnix japonica) layer flock. The quail flock consists of two houses. The affected layer house contained approximately 56,000 adult quail. The brooder house contains approximately 39,000 quail. There are nine additional housed on the premises that house Pekin ducks for egg production and contained approximately 21,000 ducks.

      The USDA Animal Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA) are conducting a comprehensive epidemiological investigation of this event.

      The commercial Japanese quail layer flock was experiencing increased mortality in the adult laying population.

      ..


      http://www.thepoultrysite.com/poultr...ifornian-quail

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