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2024-3-29 14:24:52


OIE: Highly pathogenic avian influenza ,Bhutan
submited by kickingbird at Apr, 16, 2015 20:38 PM from OIE

Information received on 16/04/2015 from Dr Tashi Samdup, Director, Department of Livestock, Ministry of Agriculture and Forests, Thimphu, Bhutan

Summary

Report type

Immediate notification

Date of start of the event

03/04/2015

Date of confirmation of the event

06/04/2015

Report date

16/04/2015

Date submitted to OIE

16/04/2015

Reason for notification

Reoccurrence of a listed disease

Date of previous occurrence

17/04/2013

Manifestation of disease

Clinical disease

Causal agent

Highly pathogenic avian influenza virus

Serotype

H5N1

Nature of diagnosis

Laboratory (advanced), Necropsy

This event pertains to

a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

  • THIMPHU ( Motithang City Camp, Thimphu Thromde )

Total animals affected

Species

Susceptible

Cases

Deaths

Destroyed

Slaughtered

Birds

37

16

16

21

0

Outbreak statistics

Species

Apparent morbidity rate

Apparent mortality rate

Apparent case fatality rate

Proportion susceptible animals lost*

Birds

43.24%

43.24%

100.00%

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

The outbreak has occurred in a backyard, free-ranging poultry population. While interviewing the owners of the birds, none of the mentioned source of infection could be ascertained. Further investigation on the source of infection will be followed-up. A host-pathogen interaction particularly in this case would be potential research topic. Only a small number of birds in an isolated pocket was affected. No further infection in flocks in close proximity was detected.

Control measures

Measures applied

  • Stamping out
  • Quarantine
  • Movement control inside the country
  • Screening
  • Zoning
  • Disinfection of infected premises/establishment(s)
  • Dipping / Spraying
  • Vaccination prohibited
  • No treatment of affected animals

Measures to be applied

  • No other measures

Diagnostic test results

Laboratory name and type

National Centre for Animal Health, Serbithang, Thimphu ( National laboratory )

Tests and results

Species

Test

Test date

Result

Birds

real-time PCR

06/04/2015

Positive

Laboratory name and type

National Institute of High Security Animal Diseases (NIHSAD), Bhopal, India ( OIEs Reference Laboratory )

Tests and results

Species

Test

Test date

Result

Birds

real-time PCR

14/04/2015

Positive

Future Reporting

The event is continuing. Weekly follow-up reports will be submitted

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