Highly pathogenic avian influenza,
Bhutan
Information received on 11/04/2019 from Dr Tashi Samdup, Director General, Department of Livestock, Ministry of Agriculture and Forests, Thimphu, Bhutan
Summary
Report type Immediate notification
Date of start of the event 06/04/2019
Date of confirmation of the event 08/04/2019
Report date 11/04/2019
Date submitted to OIE 11/04/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 08/08/2018
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 a defined zone within the country
New outbreaks (1)
Outbreak 1 (BHT_HPAI_2019_002) Dhamdara, Dhamdara, Phuentsholing, Chhukha
Date of start of the outbreak 06/04/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2000 264 264 1095
Affected population Another 2000 poultry birds which are at high risk of infection will be culled and disposed today
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2000 264 264 1095
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 13.20% 13.20% 100.00% **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Outbreak occurred in a backyard and semi-commercial poultry farm located close to Indian border town - Jaigoan, West Bengal state.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Screening
  • Traceability
  • Quarantine
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Zoning
  • Disinfection
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Stamping out
Diagnostic test results
Laboratory name and type Species Test Test date Result
National Centre for Animal Health (National laboratory) Birds rapid tests 08/04/2019 Positive
National Centre for Animal Health (National laboratory) Birds real-time PCR 08/04/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations