Report type

Immediate notification

Date of start of the event

03/05/2018

Date of confirmation of the event

15/05/2018

Report date

18/05/2018

Date submitted to OIE

18/05/2018

Reason for notification

Recurrence of a listed disease

Date of previous occurrence

10/03/2017

Manifestation of disease

Clinical disease

Causal agent

Highly pathogenic avian influenza virus

Serotype

H5N1

Nature of diagnosis

Clinical, Laboratory (basic), Laboratory (advanced), Necropsy

This event pertains to

the whole country

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

• Narayani ( Khairehani-9, Khairehani, Chitwon )

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

Commercial layers of 72 weeks, reared by the farmer, started exhibiting symptoms of cyanotic comb, mucus discharge from nostril, swollen head, and sudden death. Loss of egg production and feed consumption were observed. Free ranged local domestic ducks nearby the infected farm started to die 2 weeks earlier. However, this mortality was not reported. Birds in the affected farm died within two weeks time. Dead birds were disposed of in the disposal pit nearby the farm with proper disinfection. Stamping out of the birds in the infected zone has started. The number of birds stamped out in the infected zone will be reported in the follow-up reports.

Measures applied

• Movement control inside the country
• Surveillance outside containment and/or protection zone
• Screening
• Quarantine
• Official destruction of animal products
• Official disposal of carcasses, by-products and waste
• Stamping out
• Disinfection
• Vaccination prohibited
• No treatment of affected animals

Measures to be applied

• No other measures

Laboratory name and type

Central Veterinary Laboratory, Tripureshwor ( National laboratory )

Tests and results