Highly pathogenic avian influenza,
China (People's Rep. of)
Information received on 18/02/2014 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. 2
Date of start of the event 27/12/2013
Date of confirmation of the event 02/01/2014
Report date 18/02/2014
Date submitted to OIE 18/02/2014
Date event resolved 01/05/2014
Reason for notification Recurrence of a listed disease
Date of previous occurrence 18/06/2013
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 a defined zone within the country
Related reports Immediate notification (02/01/2014)
Follow-up report No. 1 (13/01/2014)
Follow-up report No. 2 (18/02/2014)
Follow-up report No. 3 (28/02/2014)
Follow-up report No. 4 (07/03/2014)
Follow-up report No. 5 (03/09/2014)
New outbreaks (1)
Outbreak 1 Zhailong village, Anshun , Guizhou
Date of start of the outbreak 13/02/2014
Outbreak status Resolved (06/03/2014)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 324268 3629 976 323292 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 324268 3629 976 323292 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 1.12% 0.30% 26.89% 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
arbin veterinary research institute, Chinese academy of agricultural sciences (OIE Reference Laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 18/02/2014 Positive
Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE Reference Laboratory) Birds haemagglutination inhibition test (HIT) 18/02/2014 Positive
Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE Reference Laboratory) Birds virus isolation 18/02/2014 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations