Highly pathogenic avian influenza,
Chinese Taipei
Information received on 26/02/2015 from Dr Ping-Cheng Yang, President, Agriculture Technology Research Institute, Council of Agriculture, Hsinchu City, Chinese Taipei
Summary
Report type Follow-up report No. 10
Date of start of the event 07/01/2015
Date of confirmation of the event 11/01/2015
Report date 26/02/2015
Date submitted to OIE 26/02/2015
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 (20)
Outbreak 1 (ch38) Zhutang Township, CHANGHUA COUNTY
Date of start of the outbreak 12/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1600 44 44 1556 0
Affected population Ducks (ch38)
Outbreak 2 (yl-391) Dongshi Township, YUNLIN COUNTY
Date of start of the outbreak 13/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2480 443 443 2037 0
Affected population Geese (yl-391)
Outbreak 3 (pt153) Yanpu Township, PINGTUNG COUNTY
Date of start of the outbreak 13/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 14500 7800 7800 6700 0
Affected population Native chickens (pt153)
Outbreak 4 (yl-390) Dongshi Township, YUNLIN COUNTY
Date of start of the outbreak 13/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 15000 7699 7699 7301 0
Affected population Native chickens (yl-390)
Outbreak 5 (cy93) Liujiao Township, CHIAYI COUNTY
Date of start of the outbreak 14/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3010 50 50 2960 0
Affected population Geese (cy93)
Outbreak 6 (yl-392) Dapi Township, YUNLIN COUNTY
Date of start of the outbreak 14/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 14900 4491 4491 10409 0
Affected population Native chickens (yl-392)
Outbreak 7 (yl-393) Citong Township, YUNLIN COUNTY
Date of start of the outbreak 14/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 13000 1892 1892 11108 0
Affected population Native chickens (yl-393)
Outbreak 8 (cy94) Liujiao Township, CHIAYI COUNTY
Date of start of the outbreak 15/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2600 1034 1034 1566 0
Affected population Geese (cy94)
Outbreak 9 (tn108) Liujia District, TAINAN CITY
Date of start of the outbreak 15/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 6500 894 894 5606 0
Affected population Native chickens (tn108)
Outbreak 10 (tn109) Guiren District, TAINAN CITY
Date of start of the outbreak 16/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2250 1801 1801 449 0
Affected population Geese (tn109)
Outbreak 11 (pt154) Jiuru Township, PINGTUNG COUNTY
Date of start of the outbreak 16/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 12000 2505 2505 9495 0
Affected population Native chickens (pt154)
Outbreak 12 (yl-394) Dongshi Township, YUNLIN COUNTY
Date of start of the outbreak 16/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2400 1110 1110 1290 0
Affected population Geese (yl-394)
Outbreak 13 (yl-398) Dounan Township, YUNLIN COUNTY
Date of start of the outbreak 17/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2600 1840 1840 760 0
Affected population Geese (yl-398)
Outbreak 14 (yl-399) Beigang Township, YUNLIN COUNTY
Date of start of the outbreak 17/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2320 81 81 2239 0
Affected population Geese (yl-399)
Outbreak 15 (hc4) Xinfeng Township, HSINCHU COUNTY
Date of start of the outbreak 17/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2260 60 60 2200 0
Affected population Layer ducks (hc4)
Outbreak 16 (hc6) Xinfeng Township, HSINCHU COUNTY
Date of start of the outbreak 17/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3000 1 0 2999 0
Affected population Layer ducks (hc6)
Outbreak 17 (yl-400) Gukeng Township, YUNLIN COUNTY
Date of start of the outbreak 18/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2420 242 242 2178 0
Affected population Geese (yl-400)
Outbreak 18 (kh21) Meinong District, KAOHSIUNG CITY
Date of start of the outbreak 18/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1250 85 85 1165 0
Affected population Geese (kh21)
Outbreak 19 (tn111) Guiren District, TAINAN CITY
Date of start of the outbreak 19/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2360 863 863 1497 0
Affected population Geese (tn111)
Outbreak 20 (tn112) Baihe District, TAINAN CITY
Date of start of the outbreak 19/02/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2560 1589 1589 971 0
Affected population Geese (tn112)
Summary of outbreaks Total outbreaks: 20
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 109010 34524 34523 74486 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 31.67% 31.67% 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 Abnormal mortalities were observed in 20 poultry farms in Hsinchu County, Changhua County, Yunlin County, Chiayi County, Tainan City, Kaohsiung City and Pingtung County. Samples were sent to the National Laboratory (AHRI) for diagnosis. H5N2 subtype HPAI was confirmed by AHRI. These farms have been put under movement restrictions. 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 infected farms are under intensified surveillance for 3 months.
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 16/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 17/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 19/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 20/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 21/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 22/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds gene sequencing 23/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 15/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 16/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 18/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 19/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 20/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 21/02/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 22/02/2015 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations