Highly pathogenic avian influenza,
Chinese Taipei
Information received on 09/02/2018 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. 88
Date of start of the event 07/01/2015
Date of confirmation of the event 11/01/2015
Report date 09/02/2018
Date submitted to OIE 09/02/2018
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)
Follow-up report No. 76 (30/10/2017)
Follow-up report No. 77 (06/11/2017)
Follow-up report No. 78 (13/11/2017)
Follow-up report No. 79 (20/11/2017)
Follow-up report No. 80 (29/11/2017)
Follow-up report No. 81 (12/12/2017)
Follow-up report No. 82 (29/12/2017)
Follow-up report No. 83 (05/01/2018)
Follow-up report No. 84 (15/01/2018)
Follow-up report No. 85 (16/01/2018)
Follow-up report No. 86 (23/01/2018)
Follow-up report No. 87 (29/01/2018)
Follow-up report No. 88 (09/02/2018)
Follow-up report No. 89 (12/02/2018)
New outbreaks (16)
Outbreak 1 (2018-pt-6) Yanpu Township, PINGTUNG COUNTY
Date of start of the outbreak 04/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 38298 0 38298 0
Affected population Meat Ducks(2018-pt-6)
Outbreak 2 (2018-tc-1) HouliDistrict, TAICHUNG CITY
Date of start of the outbreak 17/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1424 0 1424 0
Affected population Meat Ducks(2018-tc-1)
Outbreak 3 (2018-ch-4) FangyuanTownship, CHANGHUA COUNTY
Date of start of the outbreak 22/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 596 0 596 0
Affected population Meat Ducks(2018-ch-4)
Outbreak 4 (2018-yl-6) ErlunTownship, YUNLIN COUNTY
Date of start of the outbreak 22/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 31222 2755 2755 28467 0
Affected population Native Chickens(2018-yl-6)
Outbreak 5 (2018-ch-3) Dacheng Township, CHANGHUA COUNTY
Date of start of the outbreak 22/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 589 0 589 0
Affected population Meat Ducks(2018-ch-3)
Outbreak 6 (2018-yl-11) DongshiTownship, YUNLIN COUNTY
Date of start of the outbreak 23/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 578 0 578 0
Affected population Meat Ducks(2018-yl-11)
Outbreak 7 (2018-yl-12) DongshiTownship, YUNLIN COUNTY
Date of start of the outbreak 23/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1512 0 1512 0
Affected population Meat Ducks(2018-yl-12)
Outbreak 8 (2018-ch-5) ErlinTownship, CHANGHUA COUNTY
Date of start of the outbreak 23/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3250 0 3250 0
Affected population Meat Ducks(2018-ch-5)
Outbreak 9 (2018-yl-10) Sihu Township, YUNLIN COUNTY
Date of start of the outbreak 24/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1368 0 1368 0
Affected population Meat Ducks(2018-yl-10)
Outbreak 10 (2018-tn-2) Guiren District, TAINAN CITY
Date of start of the outbreak 24/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 4193 0 4193 0
Affected population Meat Ducks(2018-tn-2)
Outbreak 11 (2018-yl-13) DongshiTownship, YUNLIN COUNTY
Date of start of the outbreak 26/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3180 0 3180 0
Affected population Meat Ducks(2018-yl-13)
Outbreak 12 (2018-yl-7) TaixiTownship, YUNLIN COUNTY
Date of start of the outbreak 28/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 4921 540 540 4381 0
Affected population Native Chickens(2018-yl-7)
Outbreak 13 (2018-yl-8) Mailiao Township, YUNLIN COUNTY
Date of start of the outbreak 28/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 28443 5935 5935 22508 0
Affected population Native Chickens(2018-yl-8)
Outbreak 14 (2018-tn-1) HoubiDistrict, TAINAN CITY
Date of start of the outbreak 28/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1100 49 49 1051 0
Affected population Meat Geese(2018-tn-1)
Outbreak 15 (2018-cy-2) Taibao City, CHIAYI COUNTY
Date of start of the outbreak 31/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1030 50 50 980 0
Affected population Geese(2018-cy-2)
Outbreak 16 (2018-yl-9) Mailiao Township, YILAN COUNTY
Date of start of the outbreak 31/01/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 8155 1833 1833 6322 0
Affected population Native Chichens(2018-yl-9)
Summary of outbreaks Total outbreaks: 16
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 129859 11162 ** 11162 118697 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 8.60% ** 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 Samples from Pingtung County, Yunlin County, Tainan City, Taichung City, Changhua County and Chiayi County were sent to the National Laboratory, Animal Health Research Institute (AHRI) for diagnosis. Highly pathogenic avian influenza H5N2 subtype was confirmed by AHRI. The infected 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 3 km radius of the infected farms are under intensified surveillance for three months.
Control measures
Measures applied
  • Movement control inside the country
  • Disinfection / Disinfestation
  • Screening
  • Traceability
  • Quarantine
  • Surveillance outside containment and/or protection zone
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Surveillance within containment and/or protection zone
  • 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 (National laboratory) Birds gene sequencing 25/01/2018 Positive
Animal Health Research Institute (National laboratory) Birds gene sequencing 29/01/2018 Positive
Animal Health Research Institute (National laboratory) Birds gene sequencing 30/01/2018 Positive
Animal Health Research Institute (National laboratory) Birds gene sequencing 31/01/2018 Positive
Animal Health Research Institute (National laboratory) Birds gene sequencing 03/02/2018 Positive
Animal Health Research Institute (National laboratory) Birds gene sequencing 03/02/2018 Positive
Animal Health Research Institute (National laboratory) Birds gene sequencing 04/02/2018 Positive
Animal Health Research Institute (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 11/01/2018 Positive
Animal Health Research Institute (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 24/01/2018 Positive
Animal Health Research Institute (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 28/01/2018 Positive
Animal Health Research Institute (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 30/01/2018 Positive
Animal Health Research Institute (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 30/01/2018 Positive
Animal Health Research Institute (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 01/02/2018 Positive
Animal Health Research Institute (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 02/02/2018 Positive
Animal Health Research Institute (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 03/02/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations