OIE: Highly pathogenic avian influenza(H5N1), China (People´s Rep. of)

Information received on 05/02/2020 from Dr Huang Baoxu, Secretary of the Party Leadership Group, Animal Health and Epidemiology Centre, Ministry of Agriculture and Rural Affairs, Qingdao, China (People´s Rep. of)
Summary
Report type Immediate notification
Date of start of the event 24/01/2020
Date of confirmation of the event 01/02/2020
Report date 05/02/2020
Date submitted to OIE 05/02/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 05/06/2018
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
New outbreaks (1)
Outbreak 1 Jilong village, Dutouqiao township, Shuangqing District, Shaoyang, Hunan
Date of start of the outbreak 24/01/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 7850 4500 4500 3350 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 7850 4500 4500 3350 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 57.32% 57.32% 100.00% 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
Epidemiological comments A total of 17,828 animals were killed: 3,350 broilers at the epidemic site and 14,478 in the epidemic area.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Screening
  • Traceability
  • Quarantine
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Zoning
  • Disinfection
  • Vaccination prohibited
  • 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 National Avian Influenza Reference Laboratory (OIE Reference Laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 01/02/2020 Positive
Harbin National Avian Influenza Reference Laboratory (OIE Reference Laboratory) Birds virus isolation 01/02/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.