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


Low pathogenic avian influenza (poultry) H7N3, Mexico


Information received on 22/03/2014 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 13/02/2014
    • Date of pre-confirmation of the event 28/02/2014
    • Report date 22/03/2014
    • Date submitted to OIE 22/03/2014
    • Reason for notification New strain of a listed disease
    • Manifestation of disease Sub-clinical infection
    • Causal agent Low pathogenic avian influenza virus
    • Serotype H7N3
    • Nature of diagnosis Laboratory (advanced)
    • This event pertains to a defined zone within the country

  • New outbreaks
    • Summary of outbreaks
      • Total outbreaks: 1
        • Outbreak Location - NUEVO LEON (Pesqueria, Pesqueria)
          • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
            • Birds - 1987 - ** - 0 - 1987 - 0

          • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
            • Birds - ** - 0.00% - ** - 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
      • Legal movement of animals

  • Epidemiological comments
    • Following the epidemiological surveillance activities on notifiable avian influenza within the national poultry farming and in poultry for import, low pathogenic avian influenza subtype H7N3 virus has been identified in a lot of monk parakeets (Myiopsitta M. monachus) imported from South America, using virus identification test, virus isolation, intracerebral pathogenicity index (ICPI) and gene sequencing.
    • Birds have been quarantined and depopulation, washing, cleaning and disinfection activities as well as the introduction of sentinel birds have been implemented in the affected production unit.

  • Control measures
    • Measures applied
      • Stamping out
      • Quarantine
      • Movement control inside the country
      • Screening
      • Disinfection of infected premises/establishment(s)
      • Vaccination prohibited
      • No treatment of affected animals

    • Measures to be applied
      • No other measures

  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.

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