Highly pathogenic avian influenza,
Mexico
Information received on 02/04/2019 from Dr. Juan Gay Gutiérrez, Director General de Salud Animal, Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria (SENASICA), Secretaría de Agricultura y Desarrollo Rural (SADER), Ciudad de Mexico, Mexico
Summary
Report type Immediate notification
Date of start of the event 06/03/2019
Date of confirmation of the event 10/03/2019
Report date 01/04/2019
Date submitted to OIE 02/04/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 18/04/2018
Manifestation of disease Clinical disease
Causal agent Virus de la influenza aviar altamente patógeno
Serotype H7N3
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (01/04/2019)
Follow-up report No. 1 (16/04/2019)
Follow-up report No. 2 (26/04/2019)
Follow-up report No. 3 (17/05/2019)
Follow-up report No. 4 (04/06/2019)
Follow-up report No. 5 (19/06/2019)
Follow-up report No. 6 (08/07/2019)
New outbreaks (1)
Outbreak 1 Acolman, Mexico
Date of start of the outbreak 06/03/2019
Outbreak status Resolved (22/03/2019)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 150 150 150 0 0
Affected population Backyard with 150 birds detected following high mortality and clinical signs suggesting highly pathogenic avian influenza (cyanosis, edema and swelling on red comb and wattles and sudden death).
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 150 150 150 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 100.00% 100.00% 100.00% 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 Los cadáveres de las aves fueron dispuestos sanitariamente dentro del predio afectado, así mismo se realizaron acciones de limpieza, lavado y desinfección de las instalaciones. Se mantiene la vigilancia de los predios localizados en el área perifocal sin que hasta el momento haya evidencia de aves enfermas o muertas. Cabe señalar que el estado de México tiene una condición sanitaria como de escasa prevalencia en la que se aplica la vacuna contra el virus de la influenza aviar H7N3, previa autorización del SENASICA.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Official disposal of carcasses, by-products and waste
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
Laboratorio de bioseguridad nivel 3 del SENASICA (National laboratory) Birds intravenous pathogenicity index (IVPI) test 10/03/2019 Positive
Laboratorio de bioseguridad nivel 3 del SENASICA (National laboratory) Birds virus isolation 08/03/2019 Positive
Laboratorio de bioseguridad nivel 3 del SENASICA (National laboratory) Birds virus sequencing 22/03/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations