Highly pathogenic avian influenza,
Chinese Taipei
Information received on 23/06/2017 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, Ministry of Agriculture, Taipei, Chinese Taipei
Summary
Report type Follow-up report No. 64
Date of start of the event 07/01/2015
Date of confirmation of the event 11/01/2015
Report date 23/06/2017
Date submitted to OIE 23/06/2017
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 H5N2
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (12/01/2015)
Follow-up report No. 1 (13/01/2015)
Follow-up report No. 2 (15/01/2015)
Follow-up report No. 3 (16/01/2015)
Follow-up report No. 4 (19/01/2015)
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 (19/03/2015)
Follow-up report No. 14 (25/03/2015)
Follow-up report No. 15 (02/04/2015)
Follow-up report No. 16 (14/04/2015)
Follow-up report No. 17 (17/04/2015)
Follow-up report No. 18 (24/04/2015)
Follow-up report No. 19 (01/05/2015)
Follow-up report No. 20 (11/05/2015)
Follow-up report No. 21 (18/05/2015)
Follow-up report No. 22 (29/05/2015)
Follow-up report No. 23 (04/06/2015)
Follow-up report No. 24 (12/06/2015)
Follow-up report No. 25 (18/06/2015)
Follow-up report No. 26 (07/07/2015)
Follow-up report No. 27 (13/07/2015)
Follow-up report No. 28 (20/07/2015)
Follow-up report No. 29 (27/07/2015)
Follow-up report No. 30 (31/07/2015)
Follow-up report No. 31 (11/08/2015)
Follow-up report No. 32 (24/08/2015)
Follow-up report No. 33 (04/09/2015)
Follow-up report No. 34 (02/10/2015)
Follow-up report No. 35 (21/10/2015)
Follow-up report No. 36 (30/10/2015)
Follow-up report No. 37 (08/12/2015)
Follow-up report No. 38 (04/01/2016)
Follow-up report No. 39 (15/01/2016)
Follow-up report No. 40 (02/02/2016)
Follow-up report No. 41 (22/02/2016)
Follow-up report No. 42 (07/03/2016)
Follow-up report No. 43 (11/04/2016)
Follow-up report No. 44 (19/04/2016)
Follow-up report No. 45 (05/05/2016)
Follow-up report No. 46 (20/06/2016)
Follow-up report No. 47 (21/09/2016)
Follow-up report No. 48 (17/10/2016)
Follow-up report No. 49 (09/01/2017)
Follow-up report No. 50 (06/02/2017)
Follow-up report No. 51 (01/03/2017)
Follow-up report No. 52 (07/03/2017)
Follow-up report No. 53 (17/03/2017)
Follow-up report No. 54 (20/03/2017)
Follow-up report No. 55 (27/03/2017)
Follow-up report No. 56 (10/04/2017)
Follow-up report No. 57 (11/04/2017)
Follow-up report No. 58 (01/05/2017)
Follow-up report No. 59 (08/05/2017)
Follow-up report No. 60 (15/05/2017)
Follow-up report No. 61 (03/06/2017)
Follow-up report No. 62 (07/06/2017)
Follow-up report No. 63 (16/06/2017)
Follow-up report No. 64 (23/06/2017)
Follow-up report No. 65 (27/06/2017)
Follow-up report No. 66 (03/07/2017)
Follow-up report No. 67 (11/07/2017)
Follow-up report No. 68 (17/07/2017)
Follow-up report No. 69 (24/07/2017)
Follow-up report No. 70 (31/07/2017)
Follow-up report No. 71 (07/08/2017)
Follow-up report No. 72 (22/08/2017)
Follow-up report No. 73 (31/08/2017)
Follow-up report No. 74 (05/09/2017)
Follow-up report No. 75 (11/10/2017)
New outbreaks (6)
Outbreak 1 (2017-hl-5) Hualien City, HUALIEN COUNTY
Date of start of the outbreak 02/06/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Slaughterhouse
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 32 10 10 22 0
Affected population Native chickens in the abattoir (2017-hl-5)
Outbreak 2 (2017-ch-12) Zhutang Township, CHANGHUA COUNTY
Date of start of the outbreak 11/06/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 9340 710 710 8630 0
Affected population Navite chickens (2017-ch-12)
Outbreak 3 (2017-yl-73) Dongshi Township, YUNLIN COUNTY
Date of start of the outbreak 12/06/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1920 739 739 1181 0
Affected population Turkeys (2017-yl-73)
Outbreak 4 (2017-yl-74) Dongshi Township, YUNLIN COUNTY
Date of start of the outbreak 13/06/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 12584 1576 1576 11008 0
Affected population Native chickens (2017-yl-74)
Outbreak 5 (2017-ks-6) Alian District, KAOHSIUNG CITY
Date of start of the outbreak 13/06/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Slaughterhouse
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2252 44 44 2208 0
Affected population Native chickens (2017-ks-6)
Outbreak 6 (2017-tn-14) Xiaying District, TAINAN CITY
Date of start of the outbreak 15/06/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 37000 2928 2928 34072 0
Affected population Chickens (2017-tn-14)
Summary of outbreaks Total outbreaks: 6
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 63128 6007 6007 57121 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 9.52% 9.52% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Samples from 4 poultry farms in Changhua County, Yunlin County, and Tainan City were sent to the National Laboratory, Animal Health Research Institute (AHRI) for analysis. Highly pathogenic avian influenza H5N2 subtype was confirmed by the AHRI. The farms have been placed under movement restriction. All animals on the infected farms have been culled. Thorough cleaning and disinfection have been conducted after stamping out operation. Surrounding poultry farms within a 3 km radius of the infected farms are under intensified surveillance for 3 months. Suspected signs were observed in poultry carcasses during post-mortem inspection in 2 abattoirs in Hualien County and Kaohsiung City. Samples were sent to the AHRI for diagnosis. H5N2 subtype HPAI 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, any positive results will be included in follow-up reports.
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • 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 06/06/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 14/06/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 15/06/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 16/06/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 18/06/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 05/06/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 13/06/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 14/06/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 15/06/2017 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 17/06/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations