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Mexico - Bird flu detected in 30 wild birds in Chiapas - HPAI H7N3 confirmed by OIE

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  • Mexico - Bird flu detected in 30 wild birds in Chiapas - HPAI H7N3 confirmed by OIE

    Bird flu detected in 30 wild birds in Chiapas

    SENASICA confirms that birds were eradicated Zoo near Tuxtla Gutierrez area and calls on farms extreme caution.

    May 7, 2015
    Mexico, DF.-In Chiapas , some 30 birds of origin wild , were eradicated by personnel of the National Health Service, Food Safety and Quality (SENASICA), because they were infected with the virus of bird flu .

    The authorities indicated that there is an outbreak, since this did not occur in a farm, but birds known as "grouse" were in a large nature reserve, near the Zoo Tuxtla Gutierrez.

    Recommended: Video: Take measures against avian influenza.

    SENASICA said that a fence a 10 kilometer radius of the reserve was established, and nearby farms were asked extreme security measures to prevent the spread of the virus.

    Meanwhile, Tuxtla Gutierrez Zoo closed its doors as a measure of protection to species.



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    Detectan gripe aviar en 30 aves silvestres de Chiapas - Nota - Finanzas - www.aztecanoticias.com.mx
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  • #2
    Highly pathogenic avian influenza,
    Mexico
    Information received on 08/05/2015 from Dr Joaquín Braulio Delgadillo Álvarez, Director General de Salud Animal, Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria (SENASICA) Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación, Ministerio de Agricultura, Ganadería, Desarrollo rural, Pesca y Alimentación, Mexico, Mexico
    Summary
    Report type Immediate notification
    Date of start of the event 28/04/2015
    Date of confirmation of the event 07/05/2015
    Report date 08/05/2015
    Date submitted to OIE 08/05/2015
    Reason for notification First occurrence of a listed disease
    Manifestation of disease Clinical disease
    Causal agent Highly pathogenic avian influenza virus
    Serotype H7N3
    Nature of diagnosis Clinical, Laboratory (basic)
    This event pertains to a defined zone within the country
    New outbreaks (1)
    Outbreak 1 Tuxtla Gutierrez, CHIAPAS
    Date of start of the outbreak 28/04/2015
    Outbreak status Continuing (or date resolved not provided)
    Epidemiological unit Not applicable
    Affected animals
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Plain chachalaca:Ortalis Vetula(Cracidae) 6 6 0 0
    Clay-colored thrush:Turdus grayi(Turdidae) 2 2 0 0
    Summary of outbreaks Total outbreaks: 1
    Total animals affected
    Species Susceptible Cases Deaths Destroyed Slaughtered
    Plain chachalaca:Ortalis Vetula(Cracidae) 6 6 0 0
    Clay-colored thrush:Turdus grayi(Turdidae) 2 2 0 0
    Outbreak statistics
    Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
    Plain chachalaca:Ortalis Vetula(Cracidae) ** ** 100.00% **
    Clay-colored thrush:Turdus grayi(Turdidae) ** ** 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 Endemic wild birds were reported having been found dead in a nature reserve called “The Zapotal”; the reserve is in the State of Chiapas, consists of 100 hectares of semi-humid forest, with several species of sapotas, and shows a wide variety of native wildlife of this State. It has about 220 animal species in their natural environments and 154 species living freely in the reserve, of which 62 species of birds. During the initial investigation, three highly pathogenic avian influenza virus of H7N3 subtype were isolated with an intravenous pathogenicity index of 2.91 and 2.99. A 10 km focal and perifocal zone was established and no evidence of infection was found in commercial poultry. Under the national epidemiological surveillance program, a state active epidemiological surveillance program is on-going for 100% of the commercial poultry and, through a statistical sample size, in backyard poultry, based on serological, virological and molecular testing; no evidence of infection was found in commercial poultry or in backyard poultry. The affected species are Ortalis vetula and Turdus grayi. The epidemiological investigation continues.
    Control measures
    Measures applied
    • Control of wildlife reservoirs
    • 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
    Level 3 Biosecurity Laboratory, SENASICA (National laboratory) Clay-colored thrush intravenous pathogenicity index (IVPI) test 07/05/2015 Positive
    Level 3 Biosecurity Laboratory, SENASICA (National laboratory) Clay-colored thrush virus isolation 29/04/2015 Positive
    Level 3 Biosecurity Laboratory, SENASICA (National laboratory) Plain chachalaca intravenous pathogenicity index (IVPI) test 07/05/2015 Positive
    Level 3 Biosecurity Laboratory, SENASICA (National laboratory) Plain chachalaca virus isolation 29/04/2015 Positive
    Future Reporting
    The event is continuing. Weekly follow-up reports will be submitted.
    .../
    http://www.oie.int/wahis_2/public/wa...reportid=17686
    "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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