[Source: OIE, full page: (LINK). Edited.]
Highly pathogenic avian influenza, Bhutan
Information received on 20/04/2012 from Mr Tenzin Dhendup, Director, Ministry of Agriculture, Department of Livestock, THIMPHU, Bhutan
------
Highly pathogenic avian influenza, Bhutan
Information received on 20/04/2012 from Mr Tenzin Dhendup, Director, Ministry of Agriculture, Department of Livestock, THIMPHU, Bhutan
- Summary
- Report type Follow-up report No. 6
- Start date 30/12/2011
- Date of first confirmation of the event 08/01/2012
- Report date 20/04/2012
- Date submitted to OIE 20/04/2012
- 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 (advanced)
- 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)
- New outbreaks
- Outbreak 1 - Yangbari, Gongdue, Mongar, Mongar
- Date of start of the outbreak 27/03/2012
- Outbreak status Continuing (or date resolved not provided)
- Epidemiological unit Village
- Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
- Birds ? 265 ? 70 ? 70 ? 0 ? 0
- Affected Population:
- Backyard free-ranging chicken in two villages, Yangbari and Patong
- Outbreak 1 - Yangbari, Gongdue, Mongar, Mongar
- Summary of outbreaks
- Total outbreaks: 1
- Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
- Birds - 26.42% - 26.42% - 100.00% - 26.42%
- * Removed from the susceptible population through death, destruction and/or slaughter
- Epidemiology
- Source of the outbreak(s) or origin of infection
- Unknown or inconclusive
- Source of the outbreak(s) or origin of infection
- Epidemiological comments
- One carcass tested positive to real-time PCR on 5 April. However, subsequently 16 samples from the affected and nearby villages tested negative to H5N1.
- Clinical and laboratory surveillance within 3 km radius showed no new cases.
- Therefore, at this stage, this could be a suspected H5N1 outbreak.
- Control measures
- Measures applied
- 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 National Centre for Animal Health (National laboratory)
- Tests and results: Species ? Test - Test date ? Result
- Birds - real-time PCR - 05/04/2012 ? Positive
- Tests and results: Species ? Test - Test date ? Result
- Laboratory name and type National Centre for Animal Health (National laboratory)
- Future Reporting
- The event is continuing. Weekly follow-up reports will be submitted.
------