Low pathogenic avian influenza (poultry),
Chinese Taipei
Information received on 26/12/2017 from Dr Tai-Hwa Shih , Chief Veterinary Officer, Deputy Director General, Bureau of Animal and Plant Health Inspection and Quarantine, Council of Agriculture Executive Yuan, Taipei 10070, Chinese Taipei
Summary
Report type Immediate notification
Date of start of the event 19/12/2017
Date of confirmation of the event 24/12/2017
Report date 26/12/2017
Date submitted to OIE 26/12/2017
Reason for notification New strain of a listed disease in the country
Causal agent Low pathogenic avian influenza virus
Serotype H5N6
Nature of diagnosis Laboratory (basic), Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (26/12/2017)
Follow-up report No. 1 (09/02/2018)
New outbreaks (2)
Outbreak 1 (Ducks (2017-LPAI-nt-1)) Zhushan Township, Nantou County
Date of start of the outbreak 19/12/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 4463 0 4463 0
Affected population Ducks (2017-LPAI-nt-1)
Outbreak 2 (Ducks (2017-LPAI-nt-2)) Zhushan Township, Nantou County
Date of start of the outbreak 19/12/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 7385 0 7385 0
Affected population Ducks (2017-LPAI-nt-2)
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 11848 ** 0 11848 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 0.00% ** 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
Epidemiological comments When we performed active surveillance program, the samples collected from 2 duck farms in Nantou County on December 19, 2017, were sent to the National Laboratory, Animal Health Research Institute (AHRI) for analysis. Low pathogenic avian influenza H5N6 subtype was confirmed by AHRI on December 24. The farms have been placed under movement restriction. All animals on the infected farms were culled. Thorough cleaning and disinfection have been conducted after stamping out operation. Surrounding poultry farms within a three-kilometer radius of the infected farms are under intensified surveillance for three months.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Quarantine
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • 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) Birds gene sequencing 24/12/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 21/12/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations