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Low pathogenic avian influenza (poultry), Print Chinese Taipei Close
Information received on 27/07/2015 from Dr Ping-Cheng Yang, Vice President, Agriculture Technology Research Institute, Council of Agriculture, Hsinchu City, Chinese Taipei Summary
Report type Follow-up report No. 2
Date of start of the event 12/01/2015
Date of confirmation of the event 14/01/2015
Report date 27/07/2015
Date submitted to OIE 27/07/2015
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 2014
Manifestation of disease Clinical disease
Causal agent Low pathogenic avian influenza virus
Serotype H5N2
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country Immediate notification (22/04/2015) Related reports Follow-up report No. 1 (12/05/2015) Follow-up report No. 2 (27/07/2015) New outbreaks (3) Outbreak 1 (cy-45) Minxiong Township, CHIAYI COUNTY
Date of start of the outbreak 22/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Species Susceptible Cases Deaths Destroyed Slaughtered Affected animals Birds 23800 5211 18589 0 Affected population Native chickens (cy-45)
Outbreak 2 (hc-3) Xinfeng Township, HSINCHU COUNTY
Date of start of the outbreak 28/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Species Susceptible Cases Deaths Destroyed Slaughtered Affected animals Birds 72400 17862 54538 0 Affected population Chickens (hc-3)
Outbreak 3 (ty-5) Guanyin District, TAOYUAN COUNTY
Date of start of the outbreak 28/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Species Susceptible Cases Deaths Destroyed Slaughtered Affected animals Birds 45000 2500 42500 0 Affected population Chickens (ty-5) Summary of Total outbreaks: 3 outbreaks
Total animals Species Susceptible Cases Deaths Destroyed Slaughtered affected Birds 141200 ** 25573 115627 0 Apparent morbidity Apparent mortality Apparent case fatality Proportion susceptible animals Species Outbreak statistics rate rate rate lost* Birds ** 18.11% ** 100.00% *Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
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Source of the outbreak(s) or Unknown or inconclusive origin of infection Abnormal mortalities were observed in 3 poultry farms in Taoyuan City, Hsinchu County and Chiayi County. Samples were sent to the National Laboratory, the Animal Health Research Institute (AHRI) for diagnosis. H5N2 subtype low pathogenic avian influenza (LPAI) was confirmed by AHRI. These farms have been put under movement restrictions. The Epidemiological pathogenicity of the virus has been subsequently confirmed by national laboratory as low pathogenic (less than 75% comments mortality of the tested chickens) on 20 July 2015. All animals on the infected farms have been culled on 31 January and 2nd February 2015. 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
Stamping out Quarantine Movement control inside the country Screening Measures applied Zoning Disinfection / Disinfestation 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 Birds gene sequencing 24/01/2015 Positive laboratory) Animal Health Research Institute (AHRI) (National Birds gene sequencing 31/01/2015 Positive laboratory) Animal Health Research Institute (AHRI) (National Birds reverse transcription - polymerase chain reaction 23/01/2015 Positive laboratory) (RT-PCR) Animal Health Research Institute (AHRI) (National Birds reverse transcription - polymerase chain reaction 30/01/2015 Positive laboratory) (RT-PCR) Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations
http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=Map... 03/08/2015