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

Giuseppe

Giuseppe

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


Highly pathogenic avian influenza, Mexico


Information received on 23/03/2013 from Dr Joaqu?n Braulio Delgadillo ?lvarez, 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, Ministerio de Agricultura, Ganader?a, Desarrollo rural, Pesca y Alimentaci?n, 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 - Tepatit?n de Morelos, Tepatitl?n 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 - Encarnaci?n de D?az, Encarnaci?n de D?az, 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 - Tepatitl?n de Morelos, Tepatitl?n 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 - Uni?n de San Antonio, Uni?n 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 Encarnaci?n de D?az (2 flocks) were identified.
    • In commercial layer farms, one outbreak was identified in Tepatitl?n de Morelos (4 flocks), one in quails (Lagos de Moreno) and 2 in backyards (Tepatitl?n de Morelos and Uni?n 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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