Highly pathogenic avian influenza,
Information received on 08/06/2018 from Dr Bimal Kumar Nirmal, Director General, Department of Livestock Services, Ministry of Agriculture and Livestock Development, NEPAL, Nepal
Report type Follow-up report No. 1
Date of start of the event 20/05/2018
Date of confirmation of the event 22/05/2018
Report date 08/06/2018
Date submitted to OIE 08/06/2018
Date event resolved 10/09/2018
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
Related reports Immediate notification (27/05/2018)
Follow-up report No. 1 (08/06/2018)
Follow-up report No. 2 (11/09/2018)
New outbreaks (1)
Outbreak 1 Godawari municipality, Mahadev dada, Lalitpur, Bagmati
Date of start of the outbreak 04/06/2018
Outbreak status Resolved (10/09/2018)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 6000 1340 1340 4660 0
Affected population Commercial broilers of 5 weeks old. Stamping out followed by cleaning and disinfection, disposal and sealing of infected premises of the last infected farm at Godawari, Lalitpur, were completed on 25.05.2018. During the surveillance period, a total of 314 samples (83 tracheal swabs, 88 cloacal swabs, 85 environmental swabs, and 58 serum samples) were collected and tested.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 6000 1340 1340 4660 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 22.33% 22.33% 100.00% 100.00%
*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 broiler chicken of 5 weeks old started exhibiting symptoms of dullness, off-fed dysponea, and sudden death. Dead birds were disposed of properly. A total of 4,660 commercial broiler, 75 backyard chicken and 512 kg of feed have been destroyed and disposed by the Rapid Response Team. Stamping out operation, cleaning and disinfection, sealing of infected premises have been completed. Post operation surveillance outside the containment area is ongoing. Further details will be sent in follow-up reports.
Control measures
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
Diagnostic test results
Laboratory name and type Species Test Test date Result
Central Veterinary Laboratory, Tripureshwor (National laboratory) Birds rapid tests 06/06/2018 Positive
Central Veterinary Laboratory, Tripureshwor (National laboratory) Birds real-time PCR 06/06/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations