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Japan - Media: Japan Testing Dead Birds In Hokkaido & Akita Prefectures - November 15, 2016

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  • Japan - Media: Japan Testing Dead Birds In Hokkaido & Akita Prefectures - November 15, 2016

    Media: Japan Testing Dead Birds In Hokkaido & Akita Prefectures

















    #11,912



    The arrival of migratory birds in Japan is celebrated each winter, with some of the world?s largest over-wintering sites for waterfowl spread across that island nation. Japan is the home to 90% of the overwintering Hooded Cranes of the world, and they are regarded (and often referred to as) `National Treasures?.
    In 2010-11 we saw a near panic among officials when 5 Hooded Cranes Test Positive For H5N1 in Izumi, in the spring of 2014 - just a couple of months after emerging in South Korea - the H5N8 virus arrived in Japan for the first time, carried in by migratory birds.
    During the fall and winter of 2014-15, Japan's poultry industry was hit repeatedly by HPAI H5N8, at about the same time the virus was encroaching on Europe and spreading in North America (see Japan: HPAI H5 Confirmed In Saga Prefecture).
    Except for scattered reports from South Korea and China - to everyone's surprise (see PNAS: The Enigma Of Disappearing HPAI H5 In North American Migratory Waterfowl) - H5N8was pretty much a `no show' last winter.
    This year, however, H5N8 is back with a vengeance in Europe. And so other areas (including North America & Japan) have to be alert for its return as well.
    When you add in the detection of HPAI H5N6 in bird feces last week in Korea (a migratory bird stop off point for many species headed for Japan)the stakes get even higher.
    Today Japanese media is carrying multiple reports of dead birds collected in two Japanese Prefectures(Akita and Hokkaido) that have reportedly tested positive in the field (subtype not identified), that are being further examined as to subtype and pathogenicity.
    It may take several days before we get a definitive answer.
    The first (translated) report concerns a dead whooping swan found on the island of Hokkaido.
    Bird flu-positive birds 1 birds in Hokkaido, to the defined inspection

    2016/11/15 9:09

    The Ministry of the Environment to up to 15 days, found the whooper swan 1 birds of wild birds to 7 days in Hokkaido Nakashibetsu is dead, the results of genetic testing, announced that came out positive for bird flu. Whether highly pathogenic, to implement the established inspection in Hokkaido.

    Expected to take about one week before the test results are known. The Ministry of the Environment, has been to strengthen the wild birds of monitoring from the dead is found point in the radius of 10 kilometers.

    Whooper the duck family of migratory birds. That flying from Russia to Hokkaido and Tohoku for wintering. 〔Joint〕

    The second (translated) report comes from Akita City in Akita Prefecture, where a black swan has died at the Akita Omoriyama Zoo.
    Positive reaction of the bird flu from dead black swan

    At 22:40 on November 15 2016

    Examination of the carcass of the black swan that had been bred in Omoriyama Zoo of Akita City, it was found that the positive reaction of the bird flu virus came out.

    According to the Akita Prefecture, 15 days afternoon Omoriyama Zoo of Akita City, for dead black swan one bird that had been bred, was subjected to a simple test, it came out positive reaction of the type A avian influenza virus.
    Dead black swan, but it had been kept in the swamp of the park, because of the swamp of construction work, from 19 days last month had been reared in the facility. Dead black swan with other black swan 2 birds and whooper swan 1 birds were together in a facility, the results of the simple test, were negative.

    In Akita Prefecture, to strengthen the monitoring of wild birds of around 10 km distance of the zoo, in the Hokkaido University, will conduct a detailed inspection of the black swan dead. In the zoo, along with the take infection prevention measures to other birds, it is to be Kyuen to detailed inspection results.
    The most obvious suspects are H5N1, H5N8, or possibly H5N6. In any event, the bird flu season continues which only just sparked to life a couple of weeks ago, continues to ramp up around the globe.

    Posted by Michael Coston at 3:42 PM





  • #2
    Highly pathogenic avian influenza,
    Japan
    Information received on 22/11/2016 from Dr Kazuo Ito, Director, International Animal Health Affairs Office, Animal Health Division, Food Safety and Consumer Affairs Bureau, Ministry of Agriculture, Forestry and Fisheries, Tokyo, Japan
    Summary
    Report type Immediate notification
    Date of start of the event 15/11/2016
    Date of confirmation of the event 21/11/2016
    Report date 21/11/2016
    Date submitted to OIE 22/11/2016
    Reason for notification Reoccurrence of a listed disease
    Date of previous occurrence 17/02/2015
    Manifestation of disease Clinical disease
    Causal agent Highly pathogenic avian influenza virus
    Serotype H5N6
    Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced)
    This event pertains to a defined zone within the country
    New outbreaks (2)
    Outbreak 1 Akita-shi, AKITA
    Date of start of the outbreak 15/11/2016
    Outbreak status Resolved (15/11/2016)
    Epidemiological unit Zoo
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Black Swan:Cygnus atratus(Anatidae) 1 1 0 0
    Outbreak 2 Akita-shi, AKITA
    Date of start of the outbreak 17/11/2016
    Outbreak status Resolved (17/11/2016)
    Epidemiological unit Zoo
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Black Swan:Cygnus atratus(Anatidae) 1 1 0 0
    Summary of outbreaks Total outbreaks: 2
    Total animals affected
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Black Swan:Cygnus atratus(Anatidae) 2 2 0 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Black Swan:Cygnus atratus(Anatidae) ** ** 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 On 15th November 2016, one death case of Cygnus atratus (black swan) was found in the zoo and its sample was tested by antigen-capture kit with positive result for influenza A virus. On 17th November 2016, another death case of Cygnus atratus was found in the same facility and positive result was gained by antigen-capture kit. On 21st November 2016, the two dead cases were confirmed to be positive for H5N6 subtype influenza A virus.
    Control measures
    Measures applied
    • Screening
    • 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
    Hokkaido University (OIE Reference Laboratory) Black Swan haemagglutination inhibition test (HIT) 19/11/2016 Positive
    Hokkaido University (OIE Reference Laboratory) Black Swan neuraminidase inhibition assay 20/11/2016 Positive
    Hokkaido University (OIE Reference Laboratory) Black Swan reverse transcription - polymerase chain reaction (RT-PCR) 19/11/2016 Positive
    Hokkaido University (OIE Reference Laboratory) Black Swan reverse transcription - polymerase chain reaction (RT-PCR) 20/11/2016 Positive
    Hokkaido University (OIE Reference Laboratory) Black Swan virus isolation 19/11/2016 Positive
    Hokkaido University (OIE Reference Laboratory) Black Swan virus sequencing 21/11/2016 Positive
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
    ...
    "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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