Low pathogenic avian influenza (poultry),
Chinese Taipei
Information received on 03/06/2013 from Dr Ping-Cheng Yang, President, Agriculture Technology Research Institute, Council of Agriculture, Hsinchu City, Chinese Taipei
Summary
Report type Follow-up report No. 7
Date of start of the event 12/11/2012
Date of confirmation of the event 20/11/2012
Report date 03/06/2013
Date submitted to OIE 03/06/2013
Date event resolved 18/02/2014
Reason for notification Recurrence of a listed disease
Date of previous occurrence 13/07/2012
Manifestation of disease Sub-clinical infection
Causal agent Low pathogenic avian influenza virus
Serotype H5N2
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (22/11/2012)
Follow-up report No. 1 (21/12/2012)
Follow-up report No. 2 (04/01/2013)
Follow-up report No. 3 (18/01/2013)
Follow-up report No. 4 (15/03/2013)
Follow-up report No. 5 (18/04/2013)
Follow-up report No. 6 (19/04/2013)
Follow-up report No. 7 (03/06/2013)
Follow-up report No. 8 (02/08/2013)
Follow-up report No. 9 (30/08/2013)
Follow-up report No. 10 (23/09/2013)
Follow-up report No. 11 (04/11/2013)
Follow-up report No. 12 (09/04/2014)
New outbreaks (1)
Outbreak 1 Ma-Gong, Penghu County
Date of start of the outbreak 15/05/2013
Outbreak status Resolved (01/08/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 13 1 0 13 0
Affected population Broiler (sentinel chicken)
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 13 1 0 13 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 7.69% 0.00% 0.00% 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 Sentinel chickens were placed on the H5N2 infected native chicken farm reported in the follow-up report No. 2 on 4 January 2013. The farm was depopulated previously by the local disease control centre (LDCC). In order to restock the chickens in the same premises, the farmer applied to LDCC for sentinel chickens test. The results showed one chicken with positive reaction to H5N2 subtype virus and the virus was defined as low pathogenic by national laboratory. Cleaning and disinfection were implemented in the farm which was emptied for 21 days.
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 22/05/2013 Negative
Animal Health Research Institute (AHRI) (National laboratory) Birds haemagglutination inhibition test (HIT) 22/05/2013 Negative
Animal Health Research Institute (AHRI) (National laboratory) Birds intravenous pathogenicity index (IVPI) test 03/06/2013 Negative
Animal Health Research Institute (AHRI) (National laboratory) Birds virus isolation 22/05/2013 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations