Highly pathogenic avian influenza,
Vietnam
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, Hanoļ, Vietnam
Summary
Report type Follow-up report No. 5
Date of start of the event 18/01/2020
Date of confirmation of the event 21/01/2020
Report date 25/02/2020
Date submitted to OIE 25/02/2020
Date event resolved 06/06/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 15/11/2019
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 (04/02/2020)
Follow-up report No. 1 (09/02/2020)
Follow-up report No. 2 (10/02/2020)
Follow-up report No. 3 (12/02/2020)
Follow-up report No. 4 (17/02/2020)
Follow-up report No. 5 (25/02/2020)
Follow-up report No. 6 (28/03/2020)
Follow-up report No. 7 (11/04/2020)
Follow-up report No. 8 (10/05/2020)
Follow-up report No. 9 (02/07/2020)
New outbreaks (13)
Outbreak 1 Trung Chinh, Trung Chinh, Nong Cong, Thanh Hoa
Date of start of the outbreak 15/02/2020
Outbreak status Resolved (15/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3646 1000 903 2743 0
Outbreak 2 Phat Tich, Phat Tich, Tien Du, Bac Ninh
Date of start of the outbreak 16/02/2020
Outbreak status Resolved (16/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 743 200 100 643 0
Outbreak 3 Lac Van, Lac Van, Nho Quan, Ninh Binh
Date of start of the outbreak 16/02/2020
Outbreak status Resolved (16/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1917 100 100 1817 0
Outbreak 4 Dong Linh, Dong Linh, Dong Hung, Thai Binh
Date of start of the outbreak 17/02/2020
Outbreak status Resolved (17/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3646 1000 1000 2646 0
Outbreak 5 Van Son, Van Son, Trieu Son, Thanh Hoa
Date of start of the outbreak 17/02/2020
Outbreak status Resolved (17/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 4075 700 254 3821 0
Outbreak 6 Nam Phuong Tien, Nam Phuong Tien, Chuong My, Ha Noi
Date of start of the outbreak 17/02/2020
Outbreak status Resolved (17/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1991 600 500 1491 0
Outbreak 7 Trung Hoa, Trung Hoa, Chuong My, Ha Noi
Date of start of the outbreak 18/02/2020
Outbreak status Resolved (18/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2258 1000 452 1806 0
Outbreak 8 Quynh Ngoc, Quynh Ngoc, Quynh Luu, Nghe An
Date of start of the outbreak 19/02/2020
Outbreak status Resolved (19/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 37 30 30 7 0
Outbreak 9 Quang Hop, Quang Hop, Quang Xuong, Thanh Hoa
Date of start of the outbreak 20/02/2020
Outbreak status Resolved (20/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 260 100 10 250 0
Outbreak 10 Hung Loc, Hung Loc, Hau Loc, Thanh Hoa
Date of start of the outbreak 20/02/2020
Outbreak status Resolved (20/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 412 50 20 392 0
Outbreak 11 Thieu Giao, Thieu Giao, Thieu Hoa, Thanh Hoa
Date of start of the outbreak 20/02/2020
Outbreak status Resolved (20/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 670 200 120 550 0
Outbreak 12 Dong Son, Dong Son, Bim Son, Thanh Hoa
Date of start of the outbreak 21/02/2020
Outbreak status Resolved (21/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1950 500 500 1450 0
Outbreak 13 Tan Trao, Tan Trao, Kien Thuy, Hai Phong
Date of start of the outbreak 21/02/2020
Outbreak status Resolved (21/03/2020)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3770 1200 285 3485 0
Summary of outbreaks Total outbreaks: 13
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 25375 6680 4274 21101 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 26.33% 16.84% 63.98% 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
  • Stamping out
  • Disinfection
  • Vaccination permitted (if a vaccine exists)
  • 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