Highly pathogenic avian influenza,
China (People's Rep. of)
Information received on 18/09/2012 from Dr Yu Kangzhen, National Chief Veterinary Officer , Veterinary Bureau , Ministry of Agriculture , Beijing, China (People's Rep. of)
Summary
Report type Immediate notification
Date of start of the event 11/09/2012
Date of confirmation of the event 18/09/2012
Report date 18/09/2012
Date submitted to OIE 18/09/2012
Date event resolved 18/10/2012
Reason for notification Recurrence of a listed disease
Date of previous occurrence 01/08/2012
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Suspicion, Clinical, Laboratory (basic), Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (18/09/2012)
Follow-up report No. 1 (09/11/2012)
New outbreaks (1)
Outbreak 1 Dongjian, Zhanjiang, Guangdong
Date of start of the outbreak 11/09/2012
Outbreak status Resolved (18/10/2012)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 274116 14050 6300 267816 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 274116 14050 6300 267816 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 5.13% 2.30% 44.84% 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
  • Disinfection / Disinfestation
  • Dipping / Spraying for control of vectors or parasites
  • Quarantine
  • Stamping out
  • Zoning
  • 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 Species Test Test date Result
Harbin Veterinary Research Institute (OIE Reference Laboratory) Birds haemagglutination inhibition test (HIT) 18/09/2012 Positive
Harbin Veterinary Research Institute (OIE Reference Laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 18/09/2012 Positive
Harbin Veterinary Research Institute (OIE Reference Laboratory) Birds virus isolation 18/09/2012 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations