Highly pathogenic avian influenza,
Information received on 12/03/2017 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 12/02/2017
Date of confirmation of the event 16/02/2017
Report date 12/03/2017
Date submitted to OIE 12/03/2017
Date event resolved 27/04/2017
Reason for notification Recurrence of a listed disease
Date of previous occurrence 07/2016
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
Related reports Immediate notification (20/02/2017)
Follow-up report No. 1 (12/03/2017)
Follow-up report No. 2 (19/03/2017)
Follow-up report No. 3 (22/03/2017)
Follow-up report No. 4 (14/04/2017)
Follow-up report No. 5 (27/04/2017)
New outbreaks (1)
Outbreak 1 Song Bang, Song Bang, Cao Bang city, Cao Bang
Date of start of the outbreak 02/03/2017
Outbreak status Resolved (21/03/2017)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 150 50 50 100 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 150 50 50 100 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 33.33% 33.33% 100.00% 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
  • Vaccination in response to the outbreak (s)
  • Disinfection
  • Surveillance outside containment and/or protection zone
  • Stamping out
  • No treatment of affected animals
Measures to be applied
  • No other measures
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations