OIE: Highly pathogenic avian influenza(H5N2), Chinese Taipei
submited by kickingbird at May, 18, 2017 11:42 AM from OIE
| Information received on 17/05/2017 from Dr Tai-Hwa Shih, Chief Veterinary Officer, Deputy Director General, Bureau of Animal and Plant Health Inspection and Quarantine Council of Agriculture Executive Yuan, Ministry of Agriculture, Taipei, Chinese Taipei | |
|
Summary
|
|
|
| Outbreak 1 (2017-ch-10) |
Dacheng Township, CHANGHUA COUNTY |
| Date of start of the outbreak |
03/05/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
458 |
|
0 |
458 |
0 | |
| Affected population |
Ducks (2017-ch-10) | |
| Outbreak 2 (2017-yl-67) |
Dongshi Township, YUNLIN COUNTY |
| Date of start of the outbreak |
07/05/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
9916 |
27 |
27 |
9889 |
0 | |
| Affected population |
Native chickens (2017-yl-67) | |
| Outbreak 3 (2017-yl-68) |
Dongshi Township, YUNLIN COUNTY |
| Date of start of the outbreak |
08/05/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
6353 |
16 |
16 |
6337 |
0 | |
| Affected population |
Native chickens (2017-yl-68) | |
| Summary of outbreaks |
Total outbreaks: 3 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
16727 |
43 ** |
43 |
16684 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Birds |
** |
0.26% |
** |
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 |
|
| Epidemiological comments |
Samples from three poultry farms in Changhua County, and Yunlin County were sent to the National Laboratory, Animal Health Research Institute (AHRI) for diagnosis. Highly pathogenic avian influenza H5N2 subtype was confirmed by the AHRI. The farms have been placed under movement restriction. All animals on the infected farm have been culled. Thorough cleaning and disinfection have been conducted after stamping out operation. Surrounding poultry farms within a 3 km radius of the infected farm are under intensified surveillance for 3 months. | |
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|
Control measures
| Measures applied |
- Movement control inside the country
- Screening
- Quarantine
- Stamping out
- Zoning
- Vaccination prohibited
- No treatment of affected animals
|
| Measures to be applied |
| |
|
Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
10/05/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
11/05/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
12/05/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
09/05/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
10/05/2017 |
Positive | |
|
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. | |
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