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2019-5-26 4:40:19


OIE: Low pathogenic avian influenza (poultry), Chinese Taipei
submited by kickingbird at May, 16, 2019 9:0 AM from OIE

Information received on 13/05/2019 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 (Final report)

Date of start of the event

10/01/2019

Date of confirmation of the event

29/04/2019

Report date

13/05/2019

Date submitted to OIE

13/05/2019

Date event resolved

07/05/2019

Reason for notification

New strain of a listed disease in the country

Causal agent

Low pathogenic avian influenza virus

Serotype

H7N7

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

  • Yilan County ( Jiaoxi Township )

Total animals affected

Species

Susceptible

Cases

Deaths

Killed and disposed of

Slaughtered

Birds

1300

**

0

0

0

Outbreak statistics

Species

Apparent morbidity rate

Apparent mortality rate

Apparent case fatality rate

Proportion susceptible animals lost*

Birds

**

0.00%

**

0.00%


* 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

This duck farm in Yilan County was sampled by the staff of the Local Animal Disease Inspection Authority (LADIA, formerly named as Local Disease Control Centre, LDCC) for active surveillance on 10 January 2019. H7N7 subtype of low pathogenic avian influenza (LPAI) was detected and confirmed by the National Laboratory, Animal Health Research Institute (AHRI), in the evening of 29 April 2019. Highly pathogenic avian influenza (HPAI) was excluded through an intravenous lethality test (inoculation test) that day. The LADIA implemented movement control on this duck farm and disinfected its neighbouring areas. The LADIA has completed the three-month intensified surveillance which includes clinical examination and sampling of the index farm and all poultry farms (eight chicken farms and 13 duck farms) within 3 km radius of the index farm. All poultry in those farms were clinically healthy and the test results were all negative. Chinese Taipei therefore declares that the event has been resolved.

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
  • Control of wildlife reservoirs
  • 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

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