Highly pathogenic avian influenza,
Mexico
Information received on 17/04/2013 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. 5
Date of start of the event 03/01/2013
Date of confirmation of the event 07/01/2013
Report date 17/04/2013
Date submitted to OIE 17/04/2013
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), 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)
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 (11)
Outbreak 1 San José Iturbide, San José Iturbide, Guanajuato
Date of start of the outbreak 05/03/2013
Outbreak status Resolved (06/03/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 209167 0 209167 0
Outbreak 2 San Luis de la Paz, San Luis de la Paz, Guanajuato
Date of start of the outbreak 06/03/2013
Outbreak status Resolved (07/03/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 118114 0 118114 0
Outbreak 3 Tepatitlán de Morelos, Tepatitlán de Morelos, Jalisco
Date of start of the outbreak 13/03/2013
Outbreak status Resolved (14/03/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2800 0 2800 0
Outbreak 4 Lagos de Moreno, Lagos de Moreno, Jalisco
Date of start of the outbreak 14/03/2013
Outbreak status Resolved (15/03/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 10000 500 500 9500 0
Outbreak 5 Teocuitatlan de Corona, Teocuitatlan de Corona, Jalisco
Date of start of the outbreak 14/03/2013
Outbreak status Resolved (15/03/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 20500 8000 0 12500 0
Outbreak 6 Comonfort 2, Comonfort, Guanajuato
Date of start of the outbreak 23/03/2013
Outbreak status Resolved (24/03/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 25269 0 25269 0
Outbreak 7 Comonfort 1, Comonfort, Guanajuato
Date of start of the outbreak 23/03/2013
Outbreak status Resolved (24/03/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 23760 0 23760 0
Outbreak 8 Acatic, Acatic, Jalisco
Date of start of the outbreak 25/03/2013
Outbreak status Resolved (26/03/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 94500 0 94500 0
Outbreak 9 Acatic, Acatic, Jalisco
Date of start of the outbreak 26/03/2013
Outbreak status Resolved (27/03/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 37000 0 3700 0
Outbreak 10 Lagos de Moreno, Lagos de Moreno, Jalisco
Date of start of the outbreak 04/04/2013
Outbreak status Resolved (05/04/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 156282 0 156282 0
Outbreak 11 Ixtacuixtla de Mariano Matamoros, Ixtacuixtla de Mariano Matamoros, Tlaxcala
Date of start of the outbreak 04/04/2013
Outbreak status Resolved (17/04/2013)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 34 5 2 32 0
Summary of outbreaks Total outbreaks: 11
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 697426 8505 ** 502 655624 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 0.07% ** 94.08%
*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 There are 11 new outbreaks: six in Jalisco, four in Guanajuato and one in Tlaxcala. Among these outbreaks, six occur in commercial layer farms (four in Jalisco and two in Guanajuato), three in heavy breeder farms (one in Jalisco and two in Guanajuato), one in broilers (Jalisco) and one in backyard poultry (Tlaxcala); an epidemiological investigation is on-going in this last outbreak. Several outbreaks were identified from virus isolated in previously immunized flocks, which did not show clinical signs nor drop in production.
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