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Summary
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| Outbreak 1 (2017-hl-5) |
Hualien City, HUALIEN COUNTY |
| Date of start of the outbreak |
02/06/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Slaughterhouse |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
32 |
10 |
10 |
22 |
0 | |
| Affected population |
Native chickens in the abattoir (2017-hl-5) | |
| Outbreak 2 (2017-ch-12) |
Zhutang Township, CHANGHUA COUNTY |
| Date of start of the outbreak |
11/06/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
9340 |
710 |
710 |
8630 |
0 | |
| Affected population |
Navite chickens (2017-ch-12) | |
| Outbreak 3 (2017-yl-73) |
Dongshi Township, YUNLIN COUNTY |
| Date of start of the outbreak |
12/06/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
1920 |
739 |
739 |
1181 |
0 | |
| Affected population |
Turkeys (2017-yl-73) | |
| Outbreak 4 (2017-yl-74) |
Dongshi Township, YUNLIN COUNTY |
| Date of start of the outbreak |
13/06/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
12584 |
1576 |
1576 |
11008 |
0 | |
| Affected population |
Native chickens (2017-yl-74) | |
| Outbreak 5 (2017-ks-6) |
Alian District, KAOHSIUNG CITY |
| Date of start of the outbreak |
13/06/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Slaughterhouse |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
2252 |
44 |
44 |
2208 |
0 | |
| Affected population |
Native chickens (2017-ks-6) | |
| Outbreak 6 (2017-tn-14) |
Xiaying District, TAINAN CITY |
| Date of start of the outbreak |
15/06/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
37000 |
2928 |
2928 |
34072 |
0 | |
| Affected population |
Chickens (2017-tn-14) | |
| Summary of outbreaks |
Total outbreaks: 6 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
63128 |
6007 |
6007 |
57121 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Birds |
9.52% |
9.52% |
100.00% |
100.00% | |
| *Removed from the susceptible population through death, destruction and/or slaughter | |
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Epidemiology
| Source of the outbreak(s) or origin of infection |
|
| Epidemiological comments |
Samples from 4 poultry farms in Changhua County, Yunlin County, and Tainan City were sent to the National Laboratory, Animal Health Research Institute (AHRI) for analysis. Highly pathogenic avian influenza H5N2 subtype was confirmed by the AHRI. The farms have been placed under movement restriction. All animals on the infected farms 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 farms are under intensified surveillance for 3 months. Suspected signs were observed in poultry carcasses during post-mortem inspection in 2 abattoirs in Hualien County and Kaohsiung City. Samples were sent to the AHRI for diagnosis. H5N2 subtype HPAI was confirmed by the AHRI. The carcasses were destroyed and thorough cleaning and disinfection have been conducted in the abattoirs. After tracing back to the farm of origin, any positive results will be included in follow-up reports. | |
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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
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| Measures to be applied |
| |
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Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
06/06/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
14/06/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
15/06/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
16/06/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
gene sequencing |
18/06/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
05/06/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
13/06/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
14/06/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
15/06/2017 |
Positive |
| Animal Health Research Institute (AHRI) (National laboratory) |
Birds |
reverse transcription - polymerase chain reaction (RT-PCR) |
17/06/2017 |
Positive | |
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Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. | |