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Highly pathogenic avian influenza,
China (People's Rep. of)
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Information received on 24/03/2017 from Dr Zhang Zhongqui, Director General , China Animal Disease Control Centre,
Veterinary Bureau, Ministry of Agriculture, Beijing, China (People's Rep. of)
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Summary
| Report type |
Immediate notification |
| Date of start of the event |
19/03/2017 |
| Date of confirmation of the event |
24/03/2017 |
| Report date |
24/03/2017 |
| Date submitted to OIE |
24/03/2017 |
| 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)
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| Outbreak 1 |
Yongzhou, Dongan, HUNAN |
| Date of start of the outbreak |
19/03/2017 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
189676 |
29760 |
18497 |
171179 |
0 |
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| Affected population |
The event was observed in local layer farm by active surveillance. |
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| Summary of outbreaks |
Total outbreaks: 1 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Birds |
189676 |
29760 |
18497 |
171179 |
0 |
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| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Birds |
15.69% |
9.75% |
62.15% |
100.00% |
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| *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 |
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Control measures
| Measures applied |
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Movement control inside the country
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Screening
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Disinfection
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Stamping out
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Vaccination permitted (if a vaccine exists)
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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 |
| Harbin National Reference Lab for Avian Influenza (OIE Reference Laboratory) |
Birds |
virus sequencing |
24/03/2017 |
Positive |
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Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. |
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Map of outbreak locations
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