Highly pathogenic avian influenza,
Chinese Taipei
Information received on 23/12/2016 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, Ministry of Agriculture, Taipei, Chinese Taipei
Summary
Report type Follow-up report No. 31
Date of start of the event 08/01/2015
Date of confirmation of the event 11/01/2015
Report date 23/12/2016
Date submitted to OIE 23/12/2016
Reason for notification Recurrence of a listed disease
Date of previous occurrence 23/07/2014
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N8
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (11/01/2015)
Follow-up report No. 1 (13/01/2015)
Follow-up report No. 2 (14/01/2015)
Follow-up report No. 3 (16/01/2015)
Follow-up report No. 4 (20/01/2015)
Follow-up report No. 5 (21/01/2015)
Follow-up report No. 6 (28/01/2015)
Follow-up report No. 7 (04/02/2015)
Follow-up report No. 8 (11/02/2015)
Follow-up report No. 9 (17/02/2015)
Follow-up report No. 10 (26/02/2015)
Follow-up report No. 11 (04/03/2015)
Follow-up report No. 12 (12/03/2015)
Follow-up report No. 13 (24/04/2015)
Follow-up report No. 14 (01/05/2015)
Follow-up report No. 15 (12/05/2015)
Follow-up report No. 16 (18/05/2015)
Follow-up report No. 17 (29/05/2015)
Follow-up report No. 18 (07/07/2015)
Follow-up report No. 19 (11/08/2015)
Follow-up report No. 20 (04/09/2015)
Follow-up report No. 21 (08/12/2015)
Follow-up report No. 22 (04/01/2016)
Follow-up report No. 23 (02/02/2016)
Follow-up report No. 24 (22/02/2016)
Follow-up report No. 25 (07/03/2016)
Follow-up report No. 26 (11/04/2016)
Follow-up report No. 27 (19/04/2016)
Follow-up report No. 28 (05/05/2016)
Follow-up report No. 29 (22/07/2016)
Follow-up report No. 30 (08/12/2016)
Follow-up report No. 31 (23/12/2016)
Follow-up report No. 32 (09/01/2017)
Follow-up report No. 33 (07/03/2017)
Follow-up report No. 34 (17/03/2017)
Follow-up report No. 35 (27/03/2017)
Follow-up report No. 36 (03/06/2017)
Follow-up report No. 37 (27/06/2017)
Follow-up report No. 38 (11/07/2017)
Follow-up report No. 39 (12/09/2017)
Follow-up report No. 40 (11/10/2017)
New outbreaks (4)
Outbreak 1 (nc-2016-2) Taishan Distict, NEW TAIPEI CITY
Date of start of the outbreak 24/11/2016
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 207 0 207 0
Affected population Chickens in an abattoir (nc-2016-2)
Outbreak 2 (nt-2016-2) Nantou City, NANTOU COUNTY
Date of start of the outbreak 27/11/2016
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2448 38 2410 0
Affected population Chickens in an abattoir (nt-2016-2)
Outbreak 3 (kc-2016-7) Ziguan District, KAOHSIUNG CITY
Date of start of the outbreak 08/12/2016
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 213 0 213 0
Affected population Chickens in an abattoir (kh-2016-7)
Outbreak 4 (tp-2016-3) Wanhua District, TAIPEI CITY
Date of start of the outbreak 09/12/2016
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 61 0 61 0
Affected population Chickens in an abattoir (tp-2016-3)
Summary of outbreaks Total outbreaks: 4
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2929 ** 38 2891 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 1.30% ** 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 Suspicious signs were observed in poultry carcasses during postmortem inspection in four abattoirs in New Taipei City, Nantou County, Kaohsiung City and Taipei City. Samples were sent to the Animal Health Research Institute (AHRI) for analysis. Highly pathogenic avian influenza H5N8 was confirmed by the AHRI. The carcasses were destroyed and thorough cleaning and disinfection have been conducted in the abattoirs. After tracing back to the farm of origin, samples have been sent to the AHRI for diagnosis. Any positive results will be included in follow-up reports.
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Disinfection / Disinfestation
  • Quarantine
  • Stamping out
  • Zoning
  • 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 26/11/2016 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 30/11/2016 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 11/12/2016 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 25/11/2016 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 29/11/2016 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 10/12/2016 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations