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Belgium - Highly pathogenic H5N8 avian influenza virus identified in a wild swan in Oud-Heverlee, Flemish Brabant (02-21-2017)

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  • Belgium - Highly pathogenic H5N8 avian influenza virus identified in a wild swan in Oud-Heverlee, Flemish Brabant (02-21-2017)

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    Avian influenza identified in a wild swan (21/02/2017)

    On 21 February, the highly pathogenic H5N8 avian influenza virus was identified in a wild swan found in Oud-Heverlee (Flemish Brabant). This finding confirms that the risk of avian influenza is still very real. The FASFC reminds holders of poultry and other birds that they must properly apply mandatory measures to protect their animals against this disease.

    Agriculture Minister Willy Borsus: " While the H5N8 virus was detected on the 1st of February in the breeding of a hobbyist, this time it is the first confirmed case in Belgium among wildlife. This demonstrates that the risk is still present and that measures to protect animal health in our farms are more relevant than ever. I therefore encourage farmers to continue to apply strictly the measures recommended. Let us recall that several hundred cases have been detected for several months in Europe in a total of 27 countries. "

    The highly pathogenic H5N8 avian influenza virus has been circulating since late October 2016 almost everywhere in Europe. It is a very aggressive virus that causes serious disorders and high mortality in wild birds and captive birds.

    Today, this virus was detected by the national reference laboratory CERVA in a wild swan found dead on a pond in the municipality of Oud-Heverlee. Although this is the first discovery of the virus in a wild bird in Belgium, this case is certainly not unique. In recent weeks, neighboring countries have still experienced many cases in wild birds. Given that wild birds can easily travel on tens or even hundreds of kilometers following a cold wave or lack of food, the risk remains.

    Recall that 3 weeks ago, on 1 February, a first contamination by this virus was discovered in Belgium in a captive bird enthusiast in Lebbeke (East Flanders). The birds were contaminated by direct contact with wild waterfowl.

    The Agency does not take any additional measures following the contamination at Oud-Heverlee but once again reminds all holders of their obligation to apply the mandatory measures correctly, even though they may sometimes be uncomfortable for animals. These measures are primarily intended to avoid contact between wild birds and captive birds as far as possible and are therefore aimed at preventing contamination which is accompanied by considerable animal suffering. As a reminder :
    Throughout the country, birds, including pigeons and racing birds (ostriches, rhea, emus, ...), and poultry of hobbyists (private individuals, amateurs) and professional holders must be confined. Remember that locking animals in their buildings is not the only option to avoid contact; Holding open pets under nets is also permitted. These two methods are the only way to reduce the risk of contamination to an acceptable level.
    Animals should also be fed and watered inside. No untreated surface water can be used.

    In addition, markets, gatherings and other events involving poultry and / or other birds of several holders are prohibited.

    These measures are applicable up to and including 10 March and may be extended if the risk remains. On the other hand, if it is tangibly reduced, they may, if necessary in whole or in part, be raised earlier.

    Given the absence of further contamination in the temporary buffer zone delineated on 1 February around the contamination at Lebbeke, this zone will be lifted that night. Therefore, as from Wednesday 22 February, transport of birds, poultry and hatching eggs will again be authorized in the 3 municipalities concerned (Lebbeke, Aalst and Dendermonde). In these communes, the same measures as in the rest of the country will apply.

    Abnormal mortality in wild birds can always be notified via toll-free number 0800 / 99.777 . Depending on the number of birds and species involved, the corpses are collected and transported to the CERVA reference laboratory. The FASFC works in close collaboration with Agentschap Natuur in Bos (Flanders), Brussels Environment and the Nature and Forests Department (Wallonia), which is responsible for the practical follow-up of calls. You can find more information on the website of the FASFC:
    www.afsca.be/santeanimale/grippeaviaire/ .

    Recall that the consumer is not at risk with this avian flu virus. Meat and eggs can be consumed safely.



    Contact person for press:
    Jean-S?bastien Walhin
    jeansebastien.walhin@afsca.be
    Tel. : 0476 88 50 77

    Pauline Bievez
    Tel. : 0477 38 45 01


    "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

  • #2
    Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
    Belgium
    Information received on 22/02/2017 from Dr Jean-Fran?ois Heymans, Director, Animal Health and Safety of Products of Animal Origin, Federal Agency for the Safety of the Food Chain (FASFC), Bruxelles, Belgium
    Summary
    Report type Follow-up report No. 1
    Date of start of the event 26/01/2017
    Date of confirmation of the event 03/02/2017
    Report date 22/02/2017
    Date submitted to OIE 22/02/2017
    Reason for notification New strain of a listed disease in the country
    Causal agent Highly pathogenic influenza A virus
    Serotype H5N8
    Nature of diagnosis Laboratory (advanced), Necropsy
    This event pertains to a defined zone within the country
    Related reports Immediate notification (03/02/2017)
    Follow-up report No. 1 (22/02/2017)
    New outbreaks (1)
    Outbreak 1 Oud-Heverlee, VLAAMS BRABANT
    Date of start of the outbreak 15/02/2017
    Outbreak status Resolved (21/02/2017)
    Epidemiological unit Other
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Mute Swan:Cygnus olor(Anatidae) 1 1 0 0
    Affected population Wild swan found dead in a pond in Oud-Heverlee
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Mute Swan:Cygnus olor(Anatidae) 1 1 0 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Mute Swan:Cygnus olor(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
    • Contact with wild species
    Control measures
    Measures applied
    • Control of wildlife reservoirs
    • 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
    CERVA (National laboratory) Mute Swan nucleotide sequencing 21/02/2017 Positive
    CERVA (National laboratory) Mute Swan pathogen isolation by egg inoculation 20/02/2017 Positive
    CERVA (National laboratory) Mute Swan real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 17/02/2017 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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