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2019-11-18 16:39:15


OIE: Highly pathogenic avian influenza(H5N5), Chinese Taipei
submited by kickingbird at Sep, 24, 2019 9:28 AM from OIE

Information received on 23/09/2019 from Dr Wen-Jane Tu, Chief Veterinary Officer, Deputy Director General, Bureau of Animal and Plant Health Inspection and Quarantine, Council of Agriculture, Executive Yuan, Taipei, Chinese Taipei

Summary

Report type

Immediate notification

Date of start of the event

09/09/2019

Date of confirmation of the event

13/09/2019

Report date

23/09/2019

Date submitted to OIE

23/09/2019

Reason for notification

New strain of a listed disease in the country

Causal agent

Highly pathogenic avian influenza virus

Serotype

H5N5

Nature of diagnosis

Laboratory (advanced)

This event pertains to

a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

  • Kaohsiung City ( Qishan District )

Total animals affected

Species

Susceptible

Cases

Deaths

Killed and disposed of

Slaughtered

Birds

3583

**

0

3583

0

Outbreak statistics

Species

Apparent morbidity rate

Apparent mortality rate

Apparent case fatality rate

Proportion susceptible animals lost*

Birds

**

0.00%

**

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

During active surveillance program, samples collected on 9 September 2019 from one duck farm in Kaohsiung City were sent to the National Laboratory, Animal Health Research Institute (AHRI) for analysis. Highly pathogenic avian influenza H5N5 subtype was confirmed by AHRI on 13 September 2019. The farm has been placed under movement restriction. All animals in this infected farm have been culled. Thorough cleaning and disinfection have been conducted after stamping out operation.
Surrounding poultry farms (2 duck farms, 2 native chicken farms and 1 layer chicken farm) within a three-kilometer radius of the infected farm are clinically healthy and test results of HPAI are all negative, and they are under intensified surveillance for 3 months to detect, if any, spreading of the virus. Chinese Taipei therefore considers that HPAI H5N5 subtype virus has not been spread.

Control measures

Measures applied

  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Traceability
  • Quarantine
  • Zoning
  • Disinfection
  • Vaccination prohibited
  • No treatment of affected animals

Measures to be applied

  • No other measures

Diagnostic test results

Laboratory name and type

Animal Health Research Institute (AHRI) ( National laboratory )

Tests and results

Species

Test

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