OIE: Highly pathogenic avian influenza, Bhutan

Information received on 10/01/2012 from Mr Tenzin Dhendup, Director, Ministry of Agriculture, Department of Livestock, THIMPHU, Bhutan

Summary

Report type Immediate notification
Start date 30/12/2011
Date of first confirmation of the event 08/01/2012
Report date 09/01/2012
Date submitted to OIE 10/01/2012
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 25/03/2010
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
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: 1
Location(s)
  • CHHUKHA (Tsimasham, Bjabcho, Chukha)
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 2010 87 87 1241 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 4.33% 4.33% 100.00% 66.07%

* 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 Remaining susceptible poultry birds in the affected area will be culled.

Control measures

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

Diagnostic test results

Laboratory name and type High Security Animal Disease Laboratory (HSADL), Bhopal, India (OIE抯 Reference Laboratory)
Tests and results
Species Test Test date Result
Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 08/01/2012 Positive
Birds reverse transcription - polymerase chain reaction (RT-PCR) 08/01/2012 Positive

Future Reporting

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