Information received on 28/01/2015 from Dr Ping-Cheng Yang, Vice President, Agriculture Technology Research Institute, Council of Agriculture, Hsinchu City, Chinese Taipei | |
Summary
|
|
Outbreak 1 (pt19) |
Wandan Township, PINGTUNG COUNTY |
Date of start of the outbreak |
12/01/2015 |
Outbreak status |
Continuing (or date resolved not provided) |
Epidemiological unit |
Farm |
Affected animals |
Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
Birds |
2400 |
1811 |
1811 |
589 |
0 | |
Affected population |
H5N2 HPAI virus was also detected on this goose farm | |
Outbreak 2 (pt48) |
Wandan Township, PINGTUNG COUNTY |
Date of start of the outbreak |
14/01/2015 |
Outbreak status |
Continuing (or date resolved not provided) |
Epidemiological unit |
Farm |
Affected animals |
Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
Birds |
7500 |
2400 |
2400 |
|
| |
Affected population |
H5N2 HPAI virus was also detected on this goose farm | |
Outbreak 3 (pt96) |
Wandan Township, PINGTUNG COUNTY |
Date of start of the outbreak |
22/01/2015 |
Outbreak status |
Continuing (or date resolved not provided) |
Epidemiological unit |
Farm |
Affected animals |
Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
Birds |
1300 |
100 |
100 |
|
| |
Affected population |
Geese | |
Summary of outbreaks |
Total outbreaks: 3 |
Total animals affected |
Species |
Susceptible |
Cases |
Deaths |
Destroyed |
Slaughtered |
Birds |
11200 |
4311 |
4311 |
589 |
0 | |
Outbreak statistics |
Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
Birds |
38.49% |
38.49% |
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 |
Abnormal mortalities were observed in three goose farms in Ping-Tung County. Samples were sent to the National Laboratory (AHRI) for diagnosis. H5N3 subtype HPAI was confirmed by AHRI on these farms. Among three farms, H5N2 subtype HPAI virus was also detected on two farms. The farms have been put under movement restrictions. All animals on the infected farms will be culled. The actual numbers of culled animals will be available when stamping out operation is finished and be reported in the next follow-up report. Thorough cleaning and disinfection will be conducted after stamping out operation. Surrounding poultry farms within 3 km radius of infected farms are under intensified surveillance for 3 months. | |
|
Control measures
Measures applied |
- Stamping out
- Quarantine
- Movement control inside the country
- Screening
- Zoning
- Disinfection of infected premises/establishment(s)
- 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 |
16/01/2015 |
Positive |
Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
18/01/2015 |
Positive |
Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
25/01/2015 |
Positive |
Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
15/01/2015 |
Positive |
Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
17/01/2015 |
Positive |
Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
24/01/2015 |
Positive | |
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted. | |