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

Information received on 16/01/2015 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 Follow-up report No. 2
Date of start of the event 12/09/2014
Date of pre-confirmation of the event 15/09/2014
Report date 16/01/2015
Date submitted to OIE 16/01/2015
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 01/05/2014
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (24/10/2014)
Follow-up report No. 1 (09/01/2015)
Follow-up report No. 2 (16/01/2015)
New outbreaks (1)
Outbreak 1 Yellow River Wetland, Sanmenxia , HENAN
Date of start of the outbreak 14/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
Common Pochard:Aythya ferina(Anatidae) 25 25 0 0
Whooper Swan:Cygnus cygnus(Anatidae) 66 66 0 0
Greater Scaup:Aythya marila(Anatidae) 2 2 0 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Common Pochard:Aythya ferina(Anatidae) 25 25 0 0
Whooper Swan:Cygnus cygnus(Anatidae) 66 66 0 0
Greater Scaup:Aythya marila(Anatidae) 2 2 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Common Pochard:Aythya ferina(Anatidae) ** ** 100.00% **
Whooper Swan:Cygnus cygnus(Anatidae) ** ** 100.00% **
Greater Scaup:Aythya marila(Anatidae) ** ** 100.00% **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
  • Contact with wild species
Control measures
Measures applied
  • Control of wildlife reservoirs
  • Disinfection of infected premises/establishment(s)
  • Dipping / Spraying
  • No vaccination
  • 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抯 Reference Laboratory) Whooper Swan reverse transcription - polymerase chain reaction (RT-PCR) 14/01/2015 Positive
Harbin Veterinary Research Institute (OIE抯 Reference Laboratory) Whooper Swan virus isolation 14/01/2015 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations