[Source: OIE, full page: (LINK). Edited.]
Highly pathogenic avian influenza, Bhutan
Information received on 11/01/2013 from Dr Karma Dukpa, Director General, Department of Livestock, Ministry of Agriculture and Forests, THIMPHU, Bhutan
------
Highly pathogenic avian influenza, Bhutan
Information received on 11/01/2013 from Dr Karma Dukpa, Director General, Department of Livestock, Ministry of Agriculture and Forests, THIMPHU, Bhutan
- Summary
- Report type Follow-up report No. 8
- Date of start of the event 30/12/2011
- Date of pre-confirmation of the event 08/01/2012
- Report date 11/01/2013
- Date submitted to OIE 11/01/2013
- 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), Necropsy
- This event pertains to a defined zone within the country
- Related reports
- Immediate notification (09/01/2012)
- Follow-up report No. 1 (17/01/2012)
- Follow-up report No. 2 (18/01/2012)
- Follow-up report No. 3 (01/03/2012)
- Follow-up report No. 4 (02/03/2012)
- Follow-up report No. 5 (09/03/2012)
- Follow-up report No. 6 (20/04/2012)
- Follow-up report No. 7 (25/10/2012)
- Follow-up report No. 8 (11/01/2013)
- New outbreaks (1)
- Outbreak 1 (BHT_HPAI_2012_01) Farm Goan, Lhamizingkha, Dagana, Dagana
- Date of start of the outbreak 19/12/2012
- Outbreak status Continuing (or date resolved not provided)
- Epidemiological unit Village
- Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
- Birds - 970 ? 18 ? 18 ? 952 ? 0
- Affected population:
- From 19 to 30 December 2012, 18 poultry died in a backyard.
- All the birds were free-ranging birds.
- Ten birds had died in the village about a month before, but it was not reported at that time.
- Seven samples were collected from the five houses in the vicinity which include 93 free-ranging birds and were sent to the National Centre for Animal Health (NCAH) for real-time PCR; two were positive.
- Outbreak 1 (BHT_HPAI_2012_01) Farm Goan, Lhamizingkha, Dagana, Dagana
- Summary of outbreaks
- Total outbreaks: 1
- Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
- Birds ? 970 ? 18 ? 18 ? 952 ? 0
- Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
- Birds - 1.86% - 1.86% - 100.00% - 100.00%
- *Removed from the susceptible population through death, destruction and/or slaughter
- Epidemiology
- Source of the outbreak(s) or origin of infection
- Unknown or inconclusive
- Illegal movement of animals
- Source of the outbreak(s) or origin of infection
- Epidemiological comments
- Up to 31 December 2012 a total of 18 poultry died in the affected area.
- Trace-back investigations revealed that there have been poultry deaths in the area from 19 December 2012 although they were not reported immediately to the local veterinary authorities.
- The disease was confirmed through real-time PCR at the National Veterinary Laboratory on 29 December when two carcasses were positive to tests.
- 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
- Measures applied
- Diagnostic test results
- Laboratory name and type ? Species ? Test - Test date ? Result
- National Centre for Animal Health, Serbithang (National laboratory) ? Birds - real-time PCR 29/12/2012 ? Positive
- High Security Animal Disease Laboratory, Bhopal, India (Regional Reference Laboratory) ? Birds - real-time PCR - 04/01/2013 ? Positive
- Laboratory name and type ? Species ? Test - Test date ? Result
- Future Reporting
- The event is continuing. Weekly follow-up reports will be submitted.
------