12 Jun 2013

Highly pathogenic avian influenza H7N3, Mexico (OIE World Animal Health Information System, June 12 2013, edited)

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

Highly pathogenic avian influenza H7N3, Mexico

Information received on 12/06/2013 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. 8
    • Date of start of the event 03/01/2013
    • Date of pre-confirmation of the event 07/01/2013
    • Report date 12/06/2013
    • Date submitted to OIE 12/06/2013
    • 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)
    • 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)
      • Follow-up report No. 5 (17/04/2013)
      • Follow-up report No. 6 (23/04/2013)
      • Follow-up report No. 7 (07/05/2013)
      • Follow-up report No. 8 (12/06/2013)
  • New outbreaks (8)
    • Outbreak 1  Tehuacan, Tehuacan, PUEBLA
      • Date of start of the outbreak 16/04/2013
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds  - 296051  - … – 0 – 0 – 0
    • Outbreak 2  - Aguascalientes, Aguascalientes, AGUASCALIENTES
      • Date of start of the outbreak 18/04/2013
      • Outbreak status Resolved (22/04/2013)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds  - 178837  - … – 0 – 178837 – 0
    • Outbreak 3  - San Miguel de Allende, San Miguel de Allende, GUANAJUATO
      • Date of start of the outbreak 30/04/2013
      • Outbreak status Resolved (01/05/2013)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds  - 19747  - … – 0 – 19747 – 0
    • Outbreak 4  - San Diego de la Unión 1, San Diego de la Unión, GUANAJUATO
      • Date of start of the outbreak 06/05/2013
      • Outbreak status Resolved (07/05/2013)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds  - 59214  - … – 0 – 59214 – 0
    • Outbreak 5  - Aguascalientes, Aguascalientes, AGUASCALIENTES
      • Date of start of the outbreak 06/05/2013
      • Outbreak status Resolved (08/05/2013)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds  - 295193  - … – 0 – 295193 – 0
    • Outbreak 6  - San Diego de la Unión, San Diego de la Unión 2, GUANAJUATO
      • Date of start of the outbreak 06/05/2013
      • Outbreak status Resolved (08/05/2013)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds  - 62000  - … – 0 – 62000 – 0
    • Outbreak 7  - Tlacotepec de Benito Juarez, Tlacotepec de Benito Juarez, PUEBLA
      • Date of start of the outbreak 16/05/2013
      • Outbreak status Resolved (17/05/2013)
      • Epidemiological unit Village
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds  - 46 – 3 – 0 – 43 – 0
    • Outbreak 8  - Acatic, Acatic, JALISCO
      • Date of start of the outbreak 23/05/2013
      • Outbreak status Resolved (27/05/2013)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds  - 200000  - … – 0 – 200000 – 0
  • Summary of outbreaks
    • Total outbreaks: 8
      • Total animals affected: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds – 1111088 - 3 ** – 0 – 815034 – 0
      • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
        • Birds – ** - 0.00% – ** - 73.35%
        • *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
  • Epidemiological comments
    • Eight new outbreaks have been detected since the previous report in Jalisco (1), Puebla (2), Guanajuato (3) and Aguascalientes (2).
    • Two commercial layer farms, two heavy breeder flocks, three broiler flocks and a backyard farm have been affected.
    • The population involved is 1,049,220 birds.
    • Control measures previously applied are still on-going, including vaccination of birds at risk.
  • 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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