OIE: Highly pathogenic avian influenza ,Mexico

OIE: Highly pathogenic avian influenza ,Mexico
submited by kickingbird at Jan, 17, 2013 23:9 PM from OIE

Information received on 16/01/2013 from Dr Hugo Fragoso Sánchez, Director general de salud animal, Servicio nacional de sanidad, inocuidad y calidad agroalimentaria (SENASICA), Secretaría de Agricultura, ganadería,desarrollo rural, pesca y alimentación (SAGARPA), Mexico, Mexico

Summary

Report type	Immediate notification
Date of start of the event	12/01/2013
Date of pre-confirmation of the event	12/01/2013
Report date	16/01/2013
Date submitted to OIE	17/01/2013
Reason for notification	Reoccurrence 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

New outbreaks

Summary of outbreaks

Total outbreaks: 2

Outbreak Location

JALISCO ( Foco 2, Encarnación de Díaz, Encarnación de Díaz Foco 1, Encarnación de Díaz, Encarnación de Díaz )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	397513	20068	18009	0	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	5.05%	4.53%	89.74%	4.53%

* 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

A high mortality was reported on 12 January in two layer farms, which were immediately inspected by official staff from SENASICA in the Municipality of Encarnación de Díaz, State of Jalisco. The first outbreak has a population of 191,771 birds aged 72 weeks, of which 10,010 sick and 9,077 dead. The second outbreak has a population of 205,742 birds aged 65 weeks, of which 10,058 sick and 8,932 dead.
Both outbreaks were detected through notification made by the veterinarians in charge of these farms. The disease evolved hyperacutely with clinical signs as conjunctivitis, edema, cyanosis, palpebral, comb and chin swelling and sudden death. Both farms are being depopulated.
Active and passive surveillance continues at national level and epidemiological investigation will go on in order to identify the source of the infection.

Control measures

Measures applied	Quarantine Movement control inside the country Screening Zoning Vaccination prohibited No treatment of affected animals
Measures to be applied	Stamping out Disinfection of infected premises/establishment(s)

Future Reporting

The event is continuing. Weekly follow-up reports will be submitted.

See Also:

http://www.oie.int

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