OIE: Highly pathogenic avian influenza, China (People´s Rep. of)

Information received on 06/06/2018 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
Immediate notification
Date of start of the event
22/05/2018
Date of confirmation of the event
30/05/2018
Report date
06/06/2018
Date submitted to OIE
06/06/2018
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
New outbreaks
Summary of outbreaks
Total outbreaks: 1
Outbreak Location
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
17000
11000
9000
8000
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
64.71%
52.94%
81.82%
100.00%

* Removed from the susceptible population through death, destruction and/or slaughter;
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Quarantine
  • Official destruction of animal products
  • 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
  • No other measures
Diagnostic test results
Laboratory name and type
Harbin National Avian influenza Reference Laboratory ( OIE Reference Laboratory )
Tests and results
Species
Test
Test date
Result
Birds
reverse transcription - polymerase chain reaction (RT-PCR)
30/05/2018
Positive
Birds
virus isolation
30/05/2018
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.