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2020-10-23 1:48:16


OIE: Highly pathogenic avian influenza(H5N6), Vietnam
submited by kickingbird at Oct, 2, 2020 20:49 PM from OIE

Information received on 01/10/2020 from Dr Dong Pham Van, Director General, Chief Veterinary Officer, Department of Animal Health, Ministry of Agriculture and Rural Development, Hano?, Vietnam
Summary
Report type Follow-up report No. 1
Date of start of the event 21/08/2020
Date of confirmation of the event 31/08/2020
Report date 01/10/2020
Date submitted to OIE 01/10/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 29/07/2020
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N6
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (11/09/2020)
Follow-up report No. 1 (01/10/2020)
New outbreaks (3)
Outbreak 1 Nam Thanh, Nam Thanh, Yen Thanh, Nghe An
Date of start of the outbreak 26/08/2020
Outbreak status Resolved (26/09/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 55 35 25 30 0
Outbreak 2 Dak Rve, Dak Rve, Kon Ray, Kon Tum
Date of start of the outbreak 13/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1262 550 340 922 0
Outbreak 3 Dien Lien, Dien Lien, Dien Chau, Nghe An
Date of start of the outbreak 24/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 105 12 12 93 0
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1422 597 377 1045 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 41.98% 26.51% 63.15% 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
Epidemiological comments Vaccination was only applied for the live poultry in surrounding areas of affected flocks.
Control measures
Measures applied
  • Vaccination in response to the outbreak (s)
  • 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.
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