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OIE WAHID: Laos- H5N6 Low pathogenic avian influenza (poultry)

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    Re: OIE WAHID- Laos- Low pathogenic avian influenza (poultry), H5N6

    Please see

    Highly pathogenic avian influenza H5N6, Laos (OIE, May 7 2014): No New Outbreak, New Reassortant Isolated - FluTrackers

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  • OIE WAHID: Laos- H5N6 Low pathogenic avian influenza (poultry)

    Low pathogenic avian influenza (poultry),
    Information received on 15/09/2014 from Dr Khambounheuang Bounkhouang , Directeur G?n?ral, D?partement de l'Elevage et des P?ches , Minist?re de l'Agriculture et des For?ts , Vientiane capital, Laos

    Report type Immediate notification
    Date of start of the event 14/07/2014
    Date of pre-confirmation of the event 17/07/2014
    Report date 15/09/2014
    Date submitted to OIE 15/09/2014
    Reason for notification First occurrence of a listed disease
    Manifestation of disease Clinical disease
    Causal agent Low pathogenic avian influenza virus
    Serotype H5N6
    Nature of diagnosis Laboratory (advanced)
    This event pertains to the whole country

    New outbreaks (1)

    Outbreak 1 (2014/002) Viengsavanh, Luangprabang, LUANGPRABANG
    Date of start of the outbreak 14/07/2014
    Outbreak status Resolved (28/07/2014)
    Epidemiological unit Farm
    Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 200 2 2 198 0

    Summary of outbreaks Total outbreaks: 1
    Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered
    Birds 200 2 2 198 0

    Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Birds 1.00% 1.00% 100.00% 100.00%

    *Removed from the susceptible population through death, destruction and/or slaughter

    Source of the outbreak(s) or origin of infection ? Introduction of new live animals
    ? Legal movement of animals
    Epidemiological comments An active surveillance for avian influenza in 5 targeted provinces of Northern Laos started in July 2014 with financial support from the United States Agency for International Development (USAID) through Food and Agriculture Organization (FAO). As of 15 September 2014, the laboratory diagnostic results from the National Animal Health Laboratory (NAHL) have revealed that a poultry farm where were introduced one-day-old chicken and ducks was positive for H5N6 as confirmed by real-time PCR. It is now planned to send the positive samples to the Australian Animal Health Laboratory for sequencing.

    Control measures
    Measures applied ? Stamping out
    ? Quarantine
    ? Movement control inside the country
    ? Screening
    ? Zoning
    ? Disinfection of infected premises/establishment(s)
    ? 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
    National Animal Health Laboratory (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 17/07/2014 Positive

    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.

    Flu Scan for Sep 16, 2014 | CIDRAP

    First appearance of H5N6 in Laotian poultry

    Low-pathogenic H5N6 avian flu, reported as a new strain in several outbreaks in Vietnam since August, has now appeared in Laos, says a report yesterday from the World Organization for Animal Health (OIE).

    Two birds in a flock of 200 on a poultry farm in Viengsavang, Luangprabang, showed signs of clinical disease and died, for an apparent morbidity rate of 1% and an apparent case-mortality rate of 100%.

    Testing by real-time polymerase chain reaction (PCR) at the National Animal Health Laboratory confirmed H5N6. The remaining birds in the flock were destroyed.
    The report says active surveillance for avian flu was started in five Laotian provinces in July with support from the US Agency for International Development through the Food and Agriculture Organization of the United Nations.