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2020-4-11 3:13:20


OIE: Highly pathogenic avian influenza(H5N1), Vietnam
submited by kickingbird at Feb, 27, 2020 14:49 PM from OIE

Information received on 25/02/2020 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 11/02/2020
Date of confirmation of the event 14/02/2020
Report date 25/02/2020
Date submitted to OIE 25/02/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 04/06/2019
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (17/02/2020)
Follow-up report No. 1 (25/02/2020)
New outbreaks (3)
Outbreak 1 Thanh Tuyen, Thanh Tuyen, Dau Tieng, Binh Duong
Date of start of the outbreak 14/02/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 10400 6700 6700 3700 0
Outbreak 2 Ham Giang, Ham Giang, Tra Cu, Tra Vinh
Date of start of the outbreak 16/02/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3000 500 200 2800 0
Outbreak 3 Hiep Hoa, Hiep Hoa, Cau Ngang, Tra Vinh
Date of start of the outbreak 19/02/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 300 100 100 200 0
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 13700 7300 7000 6700 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 53.28% 51.09% 95.89% 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
  • Surveillance within 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 7 (RAHO7) (Regional Laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 14/02/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
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