Highly pathogenic avian influenza,
Information received on 10/01/2019 from Dr Dong Pham Van, Director General, Chief Veterinary Officer, Department of Animal Health, Ministry of Agriculture and Rural Development, Hanoļ, Vietnam
Report type Follow-up report No. 1
Date of start of the event 21/12/2018
Date of confirmation of the event 21/12/2018
Report date 10/01/2019
Date submitted to OIE 10/01/2019
Date event resolved 21/01/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 24/09/2017
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (27/12/2018)
Follow-up report No. 1 (10/01/2019)
Follow-up report No. 2 (30/01/2019)
New outbreaks (1)
Outbreak 1 Long Son, Long Son, Can Duoc, Long An
Date of start of the outbreak 21/12/2018
Outbreak status Resolved (21/01/2019)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 5558 5558 220 5338 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 5558 5558 220 5338 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 100.00% 3.96% 3.96% 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
  • Movement control inside the country
  • 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 Species Test Test date Result
Regional Animal Health Office 6 (Regional Laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 03/01/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations