Highly pathogenic avian influenza,
Mexico
Information received on 04/05/2017 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 Immediate notification
Date of start of the event 18/04/2017
Date of confirmation of the event 28/04/2017
Report date 04/05/2017
Date submitted to OIE 04/05/2017
Date event resolved 31/05/2017
Reason for notification Recurrence of a listed disease
Date of previous occurrence 11/05/2016
Manifestation of disease Sub-clinical infection
Causal agent Virus de la influenza aviar altamente patógena
Serotype H7N3
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (04/05/2017)
Follow-up report No. 1 (09/06/2017)
New outbreaks (1)
Outbreak 1 Tepatitlán de Morelos, Tepatitlán de Morelos, JALISCO
Date of start of the outbreak 18/05/2017
Outbreak status Resolved (31/05/2017)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 151132 10 0 0 151132
Affected population Commercial farm with 126-weeks-old layers without neither clinical signs nor deaths detected following routine active surveillance. Animals were vaccinated and the last vaccination was applied 18 weeks before the detection.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 151132 10 0 0 151132
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 0.01% 0.00% 0.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Derivado de la vigilancia epidemiológica activa que se realiza en la zona de los Altos de Jalisco, se aisló el virus de la influenza aviar H7N3 en aves de postura comercial. Se identificó que la parvada fue vacunada contra la enfermedad dieciocho semanas antes; las aves no presentaron signos. Se estableció un área focal de 3 km y una perifocal de 10 km, identificándose la existencia de tres granjas de la misma empresa en la zona perifocal, que se encuentran vacías. La granja ha sido cuarentenada y las aves enviadas a sacrificio en un rastro autorizado, cercano al sitio. La investigación epidemiológica continúa.
Control measures
Measures applied
  • Movement control inside the country
  • Quarantine
  • Zoning
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • Official destruction of animal products
  • Stamping out
  • Disinfection
Diagnostic test results
Laboratory name and type Species Test Test date Result
Laboratorio de bioseguridad nivel 3 del SENASICA (National laboratory) Birds gene sequencing 28/04/2017 Positive
Laboratorio de bioseguridad nivel 3 del SENASICA (National laboratory) Birds intravenous pathogenicity index (IVPI) test 26/04/2017 Positive
Laboratorio de bioseguridad nivel 3 del SENASICA (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 20/04/2017 Positive
Laboratorio de bioseguridad nivel 3 del SENASICA (National laboratory) Birds virus isolation 21/04/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations