Highly pathogenic avian influenza,
Vietnam
Information received on 10/05/2020 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 16/04/2020
Date of confirmation of the event 17/04/2020
Report date 10/05/2020
Date submitted to OIE 10/05/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 19/03/2020
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
New outbreaks (3)
Outbreak 1 Truong Lac, Truong Lac, O Mon, Can Tho
Date of start of the outbreak 16/04/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1970 1970 1500 470 0
Outbreak 2 An Nhon, An Nhon, Chau Thanh, Dong Thap
Date of start of the outbreak 23/04/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 300 300 260 40 0
Outbreak 3 An Phuoc, An Phuoc, Mang Thit, Vinh Long
Date of start of the outbreak 27/04/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 800 800 400 400 0
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3070 3070 2160 910 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 100.00% 70.36% 70.36% 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 permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Stamping out
  • Disinfection
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations