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China, Hong kong - Great egret tests positive for HP H5N6 bird flu virus

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  • China, Hong kong - Great egret tests positive for HP H5N6 bird flu virus


    Tuesday, January 5, 2016

    Great egret tests positive for H5N6 virus
    *****************************************

    The Agriculture, Fisheries and Conservation Department (AFCD) said today (January 5) that a dead great egret found in Diamond Hill, Wong Tai Sin, was confirmed to be H5N6 positive after laboratory testing.

    The dead bird was found and collected from a non-public area near Spring Hill in the Nan Lian Garden, Diamond Hill, Wong Tai Sin, last Thursday (December 31). The great egret is a common resident of Hong Kong and some are winter visitors.

    The spokesman said cleaning and disinfection have been stepped up at the venue, adding that there are no poultry farms within 3 kilometres of where the dead bird was found.

    In view of the case, the AFCD has phoned poultry farmers to remind them to strengthen precautionary and biosecurity measures against avian influenza. Letters have been issued to farmers, pet bird shop owners and licence holders of pet poultry and racing pigeons reminding them that proper precautions must be taken.

    The spokesman said the department would conduct frequent inspections of poultry farms and the wholesale market to ensure that proper precautions against avian influenza have been implemented. The department will continue its wild bird monitoring and surveillance.


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  • #2
    Highly pathogenic avian influenza,
    Hong Kong (SAR - PRC)
    Information received on 06/01/2016 from Dr Thomas Sit, Chief Veterinary Officer / Assistant Director (Inspection & Quarantine), Agriculture, Fisheries and Conservation Department, Hong Kong Special Administrative Region Government, Hong Kong , Hong Kong (SAR - PRC)
    Summary
    Report type Immediate notification (Final report)
    Date of start of the event 31/12/2015
    Date of confirmation of the event 05/01/2016
    Report date 05/01/2016
    Date submitted to OIE 06/01/2016
    Date event resolved 31/12/2015
    Reason for notification Reoccurrence of a listed disease
    Date of previous occurrence 17/11/2015
    Manifestation of disease Clinical disease
    Causal agent Highly pathogenic avian influenza virus
    Serotype H5N6
    Nature of diagnosis Laboratory (advanced)
    This event pertains to the whole country
    New outbreaks (1)
    Outbreak 1 60 Fung Tak Road, Diamond Hill, HONG KONG
    Date of start of the outbreak 31/12/2015
    Outbreak status Resolved (31/12/2015)
    Epidemiological unit Not applicable
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Great Egret:Ardea alba(Ardeidae) 1 1 0 0
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Great Egret:Ardea alba(Ardeidae) 1 1 0 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Great Egret:Ardea alba(Ardeidae) ** ** 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 An intensive surveillance system is in place for all poultry farms, poultry markets and pet bird shops in Hong Kong. The H5N6 infected wild bird was detected in our ongoing surveillance program on wild birds. No spread of disease was evident. The date of end of the outbreak is the same as the date the bird was found (31 December 2015).
    Control measures
    Measures applied
    • Screening
    • Disinfection / Disinfestation
    • No vaccination
    • No treatment of affected animals
    Measures to be applied
    • No other measures
    Diagnostic test results
    Laboratory name and type Species Test Test date Result
    Tai Lung Veterinary Laboratory, Agriculture, Fisheries & Conservation Department (National laboratory) Great Egret polymerase chain reaction (PCR) 02/01/2016 Positive
    Tai Lung Veterinary Laboratory, Agriculture, Fisheries & Conservation Department (National laboratory) Great Egret virus isolation 05/01/2016 Positive
    Centre of Influenza Research, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong (Regional Reference Laboratory) Great Egret gene sequencing Pending
    Future Reporting
    The event is resolved. No more reports will be submitted.
    ...

    http://www.oie.int/wahis_2/public/wa...reportid=19455
    "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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