Highly pathogenic avian influenza,
Chinese Taipei
Information received on 19/01/2015 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 11/01/2015
Date of confirmation of the event 13/01/2015
Report date 19/01/2015
Date submitted to OIE 19/01/2015
Date event resolved 22/05/2015
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 H5N3
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (16/01/2015)
Follow-up report No. 1 (19/01/2015)
Follow-up report No. 2 (21/01/2015)
Follow-up report No. 3 (28/01/2015)
Follow-up report No. 4 (11/02/2015)
Follow-up report No. 5 (17/02/2015)
Follow-up report No. 6 (26/02/2015)
Follow-up report No. 7 (18/05/2016)
New outbreaks (14)
Outbreak 1 (pt17) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 12/01/2015
Outbreak status Resolved (16/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3000 2631 2631 369 0
Affected population Geese
Outbreak 2 (pt11) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 12/01/2015
Outbreak status Resolved (16/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2400 2040 2040 360 0
Affected population Geese
Outbreak 3 (pt31) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 13/01/2015
Outbreak status Resolved (17/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2400 1090 1090 1310 0
Affected population Geese
Outbreak 4 (pt32) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 13/01/2015
Outbreak status Resolved (18/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3200 2905 2905 295 0
Affected population Geese
Outbreak 5 (pt33) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 13/01/2015
Outbreak status Resolved (18/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2435 2140 2140 295 0
Affected population Geese
Outbreak 6 (pt34) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 13/01/2015
Outbreak status Resolved (18/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2600 2205 2205 395 0
Affected population Geese
Outbreak 7 (pt36) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 13/01/2015
Outbreak status Resolved (18/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2200 820 820 1380 0
Affected population Geese
Outbreak 8 (pt35) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 13/01/2015
Outbreak status Resolved (18/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2435 35 35 556 0
Affected population Geese
Outbreak 9 (pt46) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 14/01/2015
Outbreak status Resolved (19/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2500 2500 2500 0 0
Affected population Geese
Outbreak 10 (pt47) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 14/01/2015
Outbreak status Resolved (19/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 4000 3554 3554 446 0
Affected population Geese
Outbreak 11 (pt52) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 14/01/2015
Outbreak status Resolved (19/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2500 2411 2411 89 0
Affected population Geese
Outbreak 12 (pt61) Gaoshu Township, PINGTUNG COUNTY
Date of start of the outbreak 14/01/2015
Outbreak status Resolved (18/04/2015)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 4736 4736 4736 0 0
Affected population Ducks in abattoir
Outbreak 13 (pt50) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 14/01/2015
Outbreak status Resolved (19/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 5500 3749 3749 1751 0
Affected population Ducks
Outbreak 14 (pt38) Wandan Township, PINGTUNG COUNTY
Date of start of the outbreak 14/01/2015
Outbreak status Resolved (19/04/2015)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2380 2031 2031 349 0
Affected population Geese
Summary of outbreaks Total outbreaks: 14
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 42286 32847 32847 7595 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 77.68% 77.68% 100.00% 95.64%
*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 13 waterfowl farms and one abattoir in Ping-Tung County. Samples were sent to the National Laboratory (AHRI) for diagnosis. H5N3 subtype HPAI was confirmed by AHRI. These farms and abattoir have been put under movement restrictions. All animals on the infected farms and being held in the abattoir will be culled. The actual numbers of culled animals will be available when stamping out operation is 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 reverse transcription - polymerase chain reaction (RT-PCR) 15/01/2015 Positive
Animal Health Reserach Institute (AHRI) (National laboratory) Birds gene sequencing 16/01/2015 Positive
Animal Health Reserach Institute (AHRI) (National laboratory) Birds gene sequencing 17/01/2015 Positive
Animal Health Reserach Institute (AHRI) (National laboratory) Birds gene sequencing 18/01/2015 Positive
Animal Health Reserach Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 16/01/2015 Positive
Animal Health Reserach Institute (AHRI) (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 17/01/2015 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations