OIE: Highly pathogenic avian influenza, Vietnam

Information received on 03/07/2019 from Dr Dong Pham Van, Director General, Chief Veterinary Officer, Department of Animal Health, Ministry of Agriculture and Rural Development, Hano?, Vietnam


Report type Immediate notification
Date of start of the event 23/06/2019
Date of confirmation of the event 25/06/2019
Report date 03/07/2019
Date submitted to OIE 03/07/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 11/03/2019
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N6
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country

New outbreaks

Summary of outbreaks Total outbreaks: 1
Outbreak Location
  • Thai Binh ( Thuy Hong, Thuy Hong, Thai Thuy )
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1000 1000 35 965 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 100.00% 3.50% 3.50% 100.00%

* Removed from the susceptible population through death, destruction and/or slaughter;


Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive

Control measures

Measures applied
  • Surveillance outside containment and/or protection zone
  • Stamping out
  • Disinfection
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • No other measures

Diagnostic test results

Laboratory name and type Regional Animal Health Office (RAHO2) ( Regional Laboratory )
Tests and results
Species Test Test date Result
Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 25/06/2019 Positive

Future Reporting

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