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Highly pathogenic avian influenza H7N3, Mexico (OIE, March 25 2013): 13 New Poultry Outbreaks

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  • Highly pathogenic avian influenza H7N3, Mexico (OIE, March 25 2013): 13 New Poultry Outbreaks

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


    Highly pathogenic avian influenza, Mexico


    Information received on 23/03/2013 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 Follow-up report No. 4
      • Date of start of the event 03/01/2013
      • Date of pre-confirmation of the event 07/01/2013
      • Report date 23/03/2013
      • Date submitted to OIE 23/03/2013
      • 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
      • Related reports
        • Immediate notification (08/01/2013)
        • Follow-up report No. 1 (16/01/2013)
        • Follow-up report No. 2 (18/02/2013)
        • Follow-up report No. 3 (28/02/2013)
        • Follow-up report No. 4 (23/03/2013)
    • New outbreaks (13)
      • Outbreak 1 - Tepatitán de Morelos, Tepatitlán de Morelos, JALISCO
        • Date of start of the outbreak 12/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 178029 – 3000 – 3000 – 0 – 0
          • Affected population Four commercial flocks of layers
      • Outbreak 2 - Dolores Hidalgo, Dolores Hidalgo, GUANAJUATO
        • Date of start of the outbreak 15/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 38739 – 6081 – 5125 – 0 – 0
      • Outbreak 3 - Lagos de Moreno, Lagos de Moreno, JALISCO
        • Date of start of the outbreak 19/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 1752391 – 396200 – 388499 – 0 – 0
          • Affected population 15 flocks of broilers
      • Outbreak 4 - Encarnación de Díaz, Encarnación de Díaz, JALISCO
        • Date of start of the outbreak 20/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 374699 – 39644 – 7100 – 0 – 0
          • Affected population Two flocks of broilers
      • Outbreak 5 - Lagos de Moreno, Lagos de Moreno, JALISCO
        • Date of start of the outbreak 20/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 2000 – 100 – 100 – 0 – 0
          • Affected population A commercial flock of layer Japanese quails
      • Outbreak 6 - Juventino Rosas, Juventino Rosas, GUANAJUATO
        • Date of start of the outbreak 25/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Village
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 43 – 3 – 3 – 0 – 0
      • Outbreak 7 - Dolores Hidalgo, Dolores Hidalgo, GUANAJUATO
        • Date of start of the outbreak 25/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 34317 – 16699 – 329 – 0 – 0
      • Outbreak 8 - Tepatitlán de Morelos, Tepatitlán de Morelos, JALISCO
        • Date of start of the outbreak 25/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 10 – 3 – 2 – 0 – 0
          • Affected population Backyard poultry
      • Outbreak 9 - Dolores Hidalgo, Dolores Hidalgo, GUANAJUATO
        • Date of start of the outbreak 25/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 7452 – 2100 – 1405 – 0 – 0
      • Outbreak 10 - San Miguel de Allende, San Miguel de Allende, GUANAJUATO
        • Date of start of the outbreak 26/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 42719 – 9464 – 944 – 0 – 0
      • Outbreak 11 - Comonfort, Comonfort, GUANAJUATO
        • Date of start of the outbreak 27/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 22900 - … - 0 – 0 – 0
      • Outbreak 12 - Unión de San Antonio, Unión de San Antonio, JALISCO
        • Date of start of the outbreak 27/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Farm
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed - Slaughtered
          • Birds - 11 – 6 – 0 – 0 – 0
          • Affected population Backyard poultry
      • Outbreak 13 - San Miguel de Allende, San Miguel de Allende, GUANAJUATO
        • Date of start of the outbreak 28/02/2013
        • Outbreak status Continuing (or date resolved not provided)
        • Epidemiological unit Village
        • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds - 70 – 6 – 2 – 0 – 0
    • Summary of outbreaks
      • Total outbreaks: 13
        • Total animals affected: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
          • Birds – 2453380 - 473306 ** – 406509 – 0 – 0
        • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
          • Birds – ** - 16.57% – ** - 16.57%
          • *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
      • Following the epidemiological investigation on the event occurred in Guanajuato, 7 outbreaks due to highly pathogenic avian influenza virus were identified (5 heavy breeder farms and 2 backyards) with a total affected population of 146,240 birds.
      • These outbreaks were located in the municipalities of Dolores Hidalgo (4), Juventino Rosas (1) and San Miguel de Allende (2).
      • In Jalisco, 2 outbreaks in broiler farms, one in Lagos de Moreno (15 flocks) and another in Encarnación de Díaz (2 flocks) were identified.
      • In commercial layer farms, one outbreak was identified in Tepatitlán de Morelos (4 flocks), one in quails (Lagos de Moreno) and 2 in backyards (Tepatitlán de Morelos and Unión de San Antonio).
      • The affected population is 2,307,140 birds.
      • Simultaneously, depopulation activities have begun in the affected farms and preventive vaccination is still on-going in high risk birds.
      • From January to 15 March 2013, 44.6 million doses were applied.
    • Control measures
      • Measures applied
        • Quarantine
        • Movement control inside the country
        • Screening
        • Zoning
        • Vaccination in response to the outbreak (s) - Administrative division – Species - Total Vaccinated – Details
          • GUANAJUATO – Birds – 5512080 - Breeder and layer commercial farms
        • Disinfection of infected premises/establishment(s)
        • No treatment of affected animals
      • Measures to be applied
        • Stamping out
    • Future Reporting
      • The event is continuing. Weekly follow-up reports will be submitted.
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