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Highly pathogenic avian influenza H7N3, Mexico (OIE, January 17 2013): 2 New Poultry Outbreaks, Jalisco

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  • Highly pathogenic avian influenza H7N3, Mexico (OIE, January 17 2013): 2 New Poultry Outbreaks, Jalisco

    [Source: OIE, full PDF document: (LINK). Edited.]


    Highly pathogenic avian influenza, Mexico


    Information received on 16/01/2013 from Dr Hugo Fragoso S?nchez, Director general de salud animal, Servicio nacional de sanidad, inocuidad y calidad agroalimentaria (SENASICA), Secretar?a de Agricultura, ganader?a,desarrollo rural, pesca y alimentaci?n (SAGARPA), Mexico, Mexico
    • Summary
      • Report type Immediate notification
      • Date of start of the event 12/01/2013
      • Date of pre-confirmation of the event 12/01/2013
      • Report date 16/01/2013
      • Date submitted to OIE 17/01/2013
      • Reason for notification Reoccurrence of a listed disease
      • Date of previous occurrence 29/09/2012
      • Manifestation of disease Clinical disease
      • Causal agent Highly pathogenic avian influenza virus
      • Serotype H7N3
      • Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced)
      • This event pertains to a defined zone within the country
    • New outbreaks
      • Summary of outbreaks
        • Total outbreaks: 2
        • Outbreak Location - JALISCO ( Foco 2, Encarnaci?n de D?az, Encarnaci?n de D?az Foco 1, Encarnaci?n de D?az, Encarnaci?n de D?az )
          • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
            • Birds - 397513 ? 20068 - 18009 - 0 - 0
      • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
        • Birds - 5.05% - 4.53% - 89.74% - 4.53%
        • * Removed from the susceptible population through death, destruction and/or slaughter;
    • Epidemiology
      • Source of the outbreak(s) or origin of infection
        • Unknown or inconclusive
    • Epidemiological comments
      • A high mortality was reported on 12 January in two layer farms, which were immediately inspected by official staff from SENASICA in the Municipality of Encarnaci?n de D?az, State of Jalisco.
      • The first outbreak has a population of 191,771 birds aged 72 weeks, of which 10,010 sick and 9,077 dead.
      • The second outbreak has population of 205,742 birds aged 65 weeks, of which 10,058 sick and 8,932 dead.
      • Both outbreaks were detected through notification made by the veterinarians in charge of these farms.
      • The disease evolved hyperacutely with clinical signs as conjunctivitis, edema, cyanosis, palpebral, comb and chin swelling and sudden death. Both farms are being depopulated.
      • Active and passive surveillance continues at national level and epidemiological investigation will go on in order to identify the source of the infection.
    • Control measures
      • Measures applied
        • Quarantine
        • Movement control inside the country
        • Screening
        • Zoning
        • Vaccination prohibited
        • No treatment of affected animals
      • Measures to be applied
        • Stamping out
        • Disinfection of infected premises/establishment(s)
    • Future Reporting
      • The event is continuing. Weekly follow-up reports will be submitted.
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