Highly pathogenic avian influenza,
China (People's Rep. of)
Information received on 21/01/2014 from Dr Yu Kangzhen, National Chief Veterinary Officer , Veterinary Bureau , Ministry of Agriculture , Beijing, China (People's Rep. of)
Summary
Report type Follow-up report No. 1
Date of start of the event 21/12/2013
Date of confirmation of the event 21/12/2013
Report date 20/01/2014
Date submitted to OIE 21/01/2014
Date event resolved 10/10/2015
Reason for notification New strain of a listed disease
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N2
Nature of diagnosis Suspicion, Clinical, Laboratory (basic), Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (21/12/2013)
Follow-up report No. 1 (20/01/2014)
Follow-up report No. 2 (28/02/2014)
Follow-up report No. 3 (24/10/2014)
Follow-up report No. 4 (28/01/2015)
Follow-up report No. 5 (01/04/2015)
Follow-up report No. 6 (14/08/2015)
Follow-up report No. 7 (22/01/2016)
Follow-up report No. 8 (28/12/2017)
New outbreaks (1)
Outbreak 1 Hongdao Economic Development Zone, Qingdao, Shandong
Date of start of the outbreak 16/01/2014
Outbreak status Resolved (15/04/2014)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 18857 5 0 18857 0
Affected population Five specimens from one breeder farm were tested H5N2 positive according to the national surveillance plan. No dead birds were found.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 18857 5 0 18857 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 0.03% 0.00% 0.00% 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, Chinese Academy of Agricultural Sciences (OIE Reference Laboratory) Birds haemagglutination inhibition test (HIT) 20/01/2014 Positive
Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (OIE Reference Laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 20/01/2014 Positive
Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (OIE Reference Laboratory) Birds virus isolation 20/01/2014 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations