OIE: Highly pathogenic avian influenza, Mexico

Information received on 01/04/2019 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

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

Highly 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

  • Mexico ( Acolman )

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

Carcasses of the birds were disposed of according health standards within the affected premises, and the premises were cleaned, washed and disinfected. Surveillance of the premises located around the outbreak is on-going and there has been no evidence of sick or dead birds. It should be noted that the state of Mexico has a health status of low prevalence according to which vaccination against the avian influenza virus H7N3 can be applied under authorization from 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 destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • 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

Laboratorio de bioseguridad nivel 3 del SENASICA ( National laboratory )

Tests and results

Species

Test

Test date

Result

Birds

intravenous pathogenicity index (IVPI) test

10/03/2019