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

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

Outbreak statistics

* Removed from the susceptible population through death, destruction and/or slaughter;

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.

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)

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