OIE: Highly pathogenic avian influenza(HPAIV H7N9), China (People´s Rep. of)
submited by kickingbird at Jun, 2, 2017 9:29 AM from OIE
| Information received on 25/05/2017 from Dr Zhang Zhongqiu, Director General , China Animal Disease Control Centre, Veterinary Bureau, Ministry of Agriculture, Beijing, China (People´s Rep. of) | |
|
Summary
| Report type |
Follow-up report No. 2 |
| Date of start of the event |
19/03/2017 |
| Date of confirmation of the event |
24/03/2017 |
| Report date |
24/05/2017 |
| Date submitted to OIE |
25/05/2017 |
| Reason for notification |
New strain of a listed disease |
| Manifestation of disease |
Clinical disease |
| Causal agent |
Highly pathogenic avian influenza virus |
| Serotype |
H7N9 |
| Nature of diagnosis |
Clinical, Laboratory (basic), Laboratory (advanced) |
| This event pertains to |
a defined zone within the country |
| Related reports |
Immediate notification (24/03/2017)
Follow-up report No. 1 (12/05/2017)
Follow-up report No. 2 (24/05/2017)
| |
|
|
| Outbreak 1 |
Xingtai, Xingtai, HEBEI |
| Date of start of the outbreak |
28/04/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
30000 |
8500 |
5000 |
25000 |
0 | |
| Affected population |
The outbreak was observed in local layer farm through active surveillance. | |
| Outbreak 2 |
Tianjin, Wuqing District, TIANJIN |
| Date of start of the outbreak |
13/05/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
99150 |
10000 |
6000 |
93150 |
0 | |
| Affected population |
The outbreak was observed in local layer farm by local veterinary authority through active surveillance. | |
| Summary of outbreaks |
Total outbreaks: 2 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
129150 |
18500 |
11000 |
118150 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Birds |
14.32% |
8.52% |
59.46% |
100.00% | |
| *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 |
- Movement control inside the country
- Screening
- Quarantine
- Official disposal of carcasses, by-products and waste
- Stamping out
- Disinfection
- Vaccination permitted (if a vaccine exists)
- No treatment of affected animals
|
| Measures to be applied |
| |
|
Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| Harbin National Reference Lab for Avian Influenza (OIE Reference Laboratory) |
Birds |
virus sequencing |
24/05/2017 |
Positive | |
|
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. | |
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