Highly pathogenic avian influenza,
Chinese Taipei
Information received on 13/01/2015 from Dr Ping-Cheng Yang, President, Agriculture Technology Research Institute, Council of Agriculture, Hsinchu City, Chinese Taipei
Summary
Report type Follow-up report No. 1
Date of start of the event 08/01/2015
Date of confirmation of the event 11/01/2015
Report date 13/01/2015
Date submitted to OIE 13/01/2015
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 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 (5)
Outbreak 1 Dalin Township 1, CHIAYI COUNTY
Date of start of the outbreak 09/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 7200 1400 1400
Affected population Breeding geese
Outbreak 2 Dalin Township 2, CHIAYI COUNTY
Date of start of the outbreak 09/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 4100 3365 3365 735 0
Affected population Breeding geese
Outbreak 3 Dalin Township 3, CHIAYI COUNTY
Date of start of the outbreak 09/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 7200 4384 4384 2816 0
Affected population Breeding geese
Outbreak 4 Changzhi Township, PINGTUNG COUNTY
Date of start of the outbreak 10/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 840 107 107 733 0
Affected population Geese
Outbreak 5 Dongshi Township, YUNLIN COUNTY
Date of start of the outbreak 10/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 9630 2230 2230
Affected population Geese
Summary of outbreaks Total outbreaks: 5
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 28970 11486 11486 4284 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 39.65% 39.65% 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 Abnormal mortalities were observed in four goose farms in Yun-Lin County and Chia-Yi County, and in one abattoir in Ping-Tung County. Samples were sent to the National Laboratory (Animal Health Research Institute, AHRI) for diagnosis. H5N8 subtype HPAI was confirmed by AHRI. These farms have been put under movement restrictions. All the geese within the infected farms will be culled. The actual number of culled geese will be available when stamping out operation will be finished and be reported in the next follow-up report. Thorough cleaning and disinfection will be 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 13/01/2015 Positive
Animal Health Research Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 13/01/2015 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations