Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
Chinese Taipei
Information received on 01/04/2019 from Dr Wen-Jane Tu, Chief Veterinary Officer, Deputy Director General, Bureau of Animal and Plant Health Inspection and Quarantine, Council of Agriculture, Executive Yuan, Taipei, Chinese Taipei
Report type Immediate notification (Final report)
Date of start of the event 20/03/2019
Date of confirmation of the event 22/03/2019
Report date 01/04/2019
Date submitted to OIE 01/04/2019
Date event resolved 20/03/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 05/12/2017
Manifestation of disease Sub-clinical infection
Causal agent Highly pathogenic influenza A virus
Serotype H5N2
Nature of diagnosis Laboratory (basic), Laboratory (advanced), Necropsy
This event pertains to a defined zone within the country
New outbreaks (1)
Outbreak 1 (2019-tp-1) Beitou District, Taipei City
Date of start of the outbreak 20/03/2019
Outbreak status Resolved (20/03/2019)
Epidemiological unit Natural park
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Grey Heron:Ardea cinerea(Ardeidae) 1 1 0 0
Affected population Grey Heron(2019-tp-1)
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Grey Heron:Ardea cinerea(Ardeidae) 1 1 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Grey Heron:Ardea cinerea(Ardeidae) ** ** 100.00% **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments One dead Grey heron (Ardea cinerea) was found in Guandu Park in Taipei City by the staff of Taipei City Animal Protection Office (APO) and was sent to the National Laboratory (Animal Health Research Institute, AHRI) on 20 March 2019. H5N2 subtype HPAI was detected and confirmed by the AHRI in the evening of 22 March 2019. The APO disinfected the neighboring areas of the spot where the Grey heron was found and has completed clinical examination and sampling of all poultry farms (7 chicken farms) within 3 km radius of the spot. All chicken in the 7 farms are clinically healthy. They are under intensified surveillance for 3 months. If any positive farms are detected from the intensified surveillance, they will be included into the HPAI reports for poultry.
Control measures
Measures applied
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Official disposal of carcasses, by-products and waste
  • Disinfection
  • Ante and post-mortem inspections
  • 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 (AHRI) (National laboratory) Grey Heron gene sequencing 22/03/2019 Positive
Future Reporting
The event is resolved. No more reports will be submitted.
Map of outbreak locations