Highly pathogenic avian influenza,
Vietnam
Information received on 08/07/2020 from Dr Dong Pham Van, Director General, Chief Veterinary Officer, Department of Animal Health, Ministry of Agriculture and Rural Development, Hanoļ, Vietnam
Summary
Report type Immediate notification
Date of start of the event 25/06/2020
Date of confirmation of the event 27/06/2020
Report date 08/07/2020
Date submitted to OIE 08/07/2020
Date event resolved 29/07/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 06/06/2020
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
Related reports Immediate notification (08/07/2020)
Follow-up report No. 1 (07/08/2020)
New outbreaks (2)
Outbreak 1 Tinh Chau, Tinh Chau, Quang Ngai, Quang Ngai
Date of start of the outbreak 25/06/2020
Outbreak status Resolved (25/07/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 4500 3500 2987 1513 0
Outbreak 2 Binh Phuoc, Binh Phuoc, Binh Son, Quang Ngai
Date of start of the outbreak 29/06/2020
Outbreak status Resolved (29/07/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3600 2000 1000 2600 0
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 8100 5500 3987 4113 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 67.90% 49.22% 72.49% 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
  • 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 Species Test Test date Result
Regional Animal Health Office No.4 (RAHO4) (Regional Laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 27/06/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations