OIE: Highly pathogenic avian influenza, Vietnam

Information received on 03/08/2018 from Dr Dong Pham Van, Director General, Chief Veterinary Officer, Department of Animal Health, Ministry of Agriculture and Rural Development, Hano?, Vietnam

Summary

Report type

Immediate notification

Date of start of the event

28/07/2018

Date of confirmation of the event

03/08/2018

Report date

03/08/2018

Date submitted to OIE

03/08/2018

Reason for notification

Recurrence of a listed disease

Date of previous occurrence

19/02/2018

Manifestation of disease

Clinical disease

Causal agent

Highly pathogenic avian influenza virus

Serotype

H5N6

Nature of diagnosis

Clinical, Laboratory (advanced)

This event pertains to

the whole country

New outbreaks

Summary of outbreaks

Total outbreaks: 3

Outbreak Location

  • Nghe An ( Dien Lien, Dien Lien, Dien Chau )
  • Hai Phong ( An Hung, An Hung, An Duong An Hong, An Hong, An Duong )

Total animals affected

Species

Susceptible

Cases

Deaths

Killed and disposed of

Slaughtered

Birds

12620

3090

1590

11030

0

Outbreak statistics

Species

Apparent morbidity rate

Apparent mortality rate

Apparent case fatality rate

Proportion susceptible animals lost*

Birds

24.48%

12.60%

51.46%

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

Control measures

Measures applied

  • Vaccination in response to the outbreak (s)
  • Surveillance outside containment and/or protection zone
  • Stamping out
  • Disinfection
  • No treatment of affected animals

Measures to be applied

  • No other measures

Diagnostic test results

Laboratory name and type

Regional animal health offices 2 & 3 ( Regional Laboratory )

Tests and results

Species

Test

Test date

Result

Birds

real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)

30/07/2018

Positive

Future Reporting

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