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2020-9-24 4:19:28

OIE: Highly pathogenic avian influenza(H5N2), Chinese Taipei
submited by kickingbird at Nov, 22, 2019 11:0 AM from OIE

Information received on 20/11/2019 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
Date of start of the event 27/10/2019
Date of confirmation of the event 30/10/2019
Report date 20/11/2019
Date submitted to OIE 20/11/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 11/07/2018
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
New outbreaks (1)
Outbreak 1 (2019-cy-1) Puzi city, Chiayi County
Date of start of the outbreak 27/10/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3000 2899 2899 101 0
Affected population Native Chickens(2019-cy-1)
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3000 2899 2899 101 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 96.63% 96.63% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments The infected animals of the farm in Chiayi County were noticed to have clinical signs and the samples were sent by the Local Animal Disease Inspection Authority (LADIA) to the National Laboratory, Animal Health Research Institute (AHRI) for diagnosis. H5 subtype HPAI was confirmed by AHRI. The infected farm has been placed under movement restriction. All animals on the infected farm have been culled. Thorough cleaning and disinfection have been conducted after stamping out operation. Surrounding poultry farms (1 duck farm, 1 goose farm and 1 layer chicken farm) within a one-kilometer radius of the infected farm are clinically healthy and test results of HPAI are all negative.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Traceability
  • Quarantine
  • 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
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 30/10/2019 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 29/10/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
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