Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
Chinese Taipei
Information received on 31/12/2020 from Dr Wen-Jane Tu, Chief Veterinary Officer, Director General, Bureau of Animal and Plant Health Inspection and Quarantine, Council of Agriculture, Executive Yuan, Taipei, Chinese Taipei
Summary
Report type Immediate notification (Final report)
Date of start of the event 15/12/2020
Date of confirmation of the event 29/12/2020
Report date 31/12/2020
Date submitted to OIE 31/12/2020
Date event resolved 31/12/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 10/2019
Manifestation of disease Sub-clinical infection
Causal agent Highly pathogenic influenza A virus
Serotype H5
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
New outbreaks (1)
Outbreak 1 (2020-wild-bird-1-Chiayi-H5-1) Dongshi Township, Chiayi County
Date of start of the outbreak 15/12/2020
Outbreak status Resolved (31/12/2020)
Epidemiological unit Natural park
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Northern Pintail:Anas acuta(Anatidae) 1 0 0 0
Affected population One Anas acuta in Aogu Wetland Forest Park was sampled by the National Pingtung University of Science and Technology on 15 December 2020.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Northern Pintail:Anas acuta(Anatidae) 1 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Northern Pintail:Anas acuta(Anatidae) ** ** 0.00% **
*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
Epidemiological comments One Anas acuta in Chiayi County was sampled by the National Pingtung University of Science and Technology on 15 December 2020 and was sent to the Animal Health Research Institute (AHRI) on 25 December 2020. Highly pathogenic avian influenza H5 subtype was detected and confirmed by the AHRI on 29 December 2020. The Local Animal Disease Inspection Authority (LADIA) disinfected the neighbouring areas of the spot where the Anas acuta was found. To prevent the outbreak from spreading, a 3-km-radius surveillance zone is imposed around the bird picked up spot. The LADIA has conducted clinical investigation and confirmed that there are no poultry farms within the 3 km radius around the spot.
Control measures
Measures applied
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • 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
Animal Health Research Institute (National laboratory) Northern Pintail gene sequencing 29/12/2020 Positive
Future Reporting
The event is resolved. No more reports will be submitted.
Map of outbreak locations