Highly pathogenic avian influenza,
Mexico
Information received on 08/05/2013 from MVZ 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, México, Mexico
Summary
Report type Follow-up report No. 7
Date of start of the event 03/01/2013
Date of confirmation of the event 07/01/2013
Report date 07/05/2013
Date submitted to OIE 08/05/2013
Date event resolved 11/09/2014
Reason for notification Recurrence 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)
Follow-up report No. 9 (12/08/2013)
Follow-up report No. 10 (31/08/2013)
Follow-up report No. 11 (19/05/2014)
Follow-up report No. 12 (09/04/2015)
New outbreaks (5)
Outbreak 1 San Diego de Alejandría, San Diego de Alejandría, Jalisco
Date of start of the outbreak 01/03/2013
Outbreak status Resolved (02/03/2013)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 16 11 10 6 0
Outbreak 2 San José Iturbide, San José Iturbide, Guanajuato
Date of start of the outbreak 03/04/2013
Outbreak status Resolved (04/05/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 319398 0 319398 0
Outbreak 3 Dolores Hidalgo, Dolores Hidalgo, Guanajuato
Date of start of the outbreak 10/04/2013
Outbreak status Resolved (11/04/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 100601 0 100601 0
Outbreak 4 Tepatitlán de Morelos, Tepatitlán de Morelos, Jalisco
Date of start of the outbreak 29/04/2013
Outbreak status Resolved (01/05/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 320000 0 320000 0
Outbreak 5 Palmar de Bravo, Palmar de Bravo, Puebla
Date of start of the outbreak 01/05/2013
Outbreak status Resolved (07/05/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 150000 75000 40000 110000 0
Summary of outbreaks Total outbreaks: 5
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 890015 75011 ** 40010 850005 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 4.50% ** 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
  • Contact with wild species
Epidemiological comments Two new outbreaks were identified in Jalisco: one in a commercial layer farm in Tepatitlán de Morelos and another in a backyard farm in the municipality of San Diego de Alejandría. In Guanajuato, two outbreaks were detected: one in a heavy breeder flock in Dolores Hidalgo and another in a fattening farm in the municipality of San José Iturbide. Moreover, a new outbreak was identified in a commercial layer farm in the municipality of Palmar de Bravo, Puebla. It was confirmed by the National Reference Laboratory using virus isolation on 6 May 2013. On 7 May, the farm was depopulated and control measures including cleaning and disinfection of facilities and equipment as well as sampling around the outbreak within a 10 km radius were launched, in addition to epidemiological surveillance at State level.
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Vaccination in response to the outbreak (s)
    Administrative division Species Total Vaccinated Details
    Guanajuato Birds 5512080 Breeder and layer commercial farms
  • Disinfection / Disinfestation
  • Quarantine
  • Zoning
  • No treatment of affected animals
Measures to be applied
  • Stamping out
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations