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