OIE: Highly pathogenic avian influenza, Bhutan_follow-up report no.4
submited by kickingbird at Mar, 3, 2012 8:9 AM from OIE
Information received on 02/03/2012 from Mr Tenzin Dhendup, Director, Ministry of Agriculture, Department of Livestock, THIMPHU, Bhutan
Summary
| Report type |
Follow-up report No. 4 |
| Start date |
30/12/2011 |
| Date of first confirmation of the event |
08/01/2012 |
| Report date |
02/03/2012 |
| Date submitted to OIE |
02/03/2012 |
| 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 |
|
New outbreaks
| Outbreak 1 |
Dala, Chukha, CHHUKHA |
| Date of start of the outbreak |
30/12/2011 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Village |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
136 |
22 |
8 |
128 |
0 | |
| Affected Population |
A backyard poultry farm adjacent to the national highway |
| Outbreak 2 |
Kamji, Chukha, CHHUKHA |
| Date of start of the outbreak |
30/12/2011 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Village |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
96 |
13 |
8 |
88 |
0 | |
| Affected Population |
A backyard poultry farm adjacent to the national highway |
| Outbreak 3 |
Gedu, Bongo, Chukha, CHHUKHA |
| Date of start of the outbreak |
17/02/2012 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
231 |
10 |
5 |
226 |
0 | |
| Affected Population |
A backyard poultry farm adjacent to the national highway |
| Outbreak 4 |
Maybari, Chukha, CHHUKHA |
| Date of start of the outbreak |
08/01/2012 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Village |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
290 |
3 |
3 |
287 |
0 | |
| Affected Population |
A backyard poultry farm adjacent to the national highway |
| Outbreak 5 |
Wangdigashel, Phuntsholing, Chukha, CHHUKHA |
| Date of start of the outbreak |
10/02/2012 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Village |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
652 |
12 |
12 |
632 |
0 | |
| Affected Population |
A backyard poultry farm adjacent to the national highway |
| Summary of outbreaks |
Total outbreaks: 5 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
| Birds |
1405 |
60 |
36 |
1361 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Birds |
4.27% |
2.56% |
60.00% |
99.43% |
* Removed from the susceptible population through death, destruction and/or slaughter |
Epidemiology
| Source of the outbreak(s) or origin of infection |
|
Control measures
| Measures applied |
- Stamping out
- 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 |
|
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 |
15/01/2012 |
Positive |
| Birds |
real-time PCR |
26/01/2012 |
Positive |
| Birds |
real-time PCR |
29/01/2012 |
Positive |
| Birds |
real-time PCR |
14/02/2012 |
Positive |
| Birds |
real-time PCR |
18/02/2012 |
Positive | |
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. |
