Information received on 06/12/2020 from Dr Dae Gyun Kim, Chief Veterinary Officer, Director General, Animal Health Policy Bureau, Ministry of Agriculture, Food and Rural Affairs, Sejong-si, Korea (Rep. of)
Summary
Report type Follow-up report No. 3
Date of start of the event 21/10/2020
Date of confirmation of the event 25/10/2020
Report date 06/12/2020
Date submitted to OIE 06/12/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 17/03/2018
Manifestation of disease Sub-clinical infection
Causal agent Highly pathogenic influenza A virus
Serotype H5N8
Nature of diagnosis Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (01/11/2020)
Follow-up report No. 1 (16/11/2020)
Follow-up report No. 2 (28/11/2020)
Follow-up report No. 3 (06/12/2020)
New outbreaks (7)
Outbreak 1 Josan-ri, yangyang-eup, yangyang-gun, Gangwon-Do
Date of start of the outbreak 23/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 1 0 0 0
Affected population H5N8 HPAI was confirmed in feces of wild bird.
Outbreak 2 Samgan-ri, Haengan-myeon, Buan-gun, Jeollabuk-Do
Date of start of the outbreak 23/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 1 0 0 0
Outbreak 3 Oksan-ri, Cheoin-gu, Yongin-si, Gyeonggi-Do
Date of start of the outbreak 25/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 1 0 0 0 0
Spot-billed Duck:Anas poecilorhyncha(Anatidae) 4 1 0 0 0
Affected population H5N8 HPAI was confirmed in one Spot-billed duck.
Outbreak 4 Daesu-ri, Baeksan-myeon, Buan-gun, Jeollabuk-Do
Date of start of the outbreak 25/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mandarin Duck:Aix galericulata(Anatidae) 21 16 0 0 0
Affected population H5N8 HPAI was confirmed in sixteen Mandarin Ducks.
Outbreak 5 Unggyo-ri, Gongdo-eup, Anseong-si, Gyeonggi-Do
Date of start of the outbreak 26/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 1 0 0 0 0
Spot-billed Duck:Anas poecilorhyncha(Anatidae) 8 1 0 0 0
Affected population H5N8 HPAI was confirmed in a spot-billed duck.
Outbreak 6 Sinyong-ri, Sintaein-eup, Jeongeup-si, Jeollabuk-Do
Date of start of the outbreak 30/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 1 0 0 0
Affected population H5N8 HPAI was confirmed in feces of wild bird.
Outbreak 7 Banam-ri, Asan-myeon, Gochang-gun, Jeollabuk-Do
Date of start of the outbreak 30/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 1 0 0 0
Affected population H5N8 HPAI was confirmed in feces of wild bird.
Summary of outbreaks Total outbreaks: 7
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 2 4 0 0 0
Spot-billed Duck:Anas poecilorhyncha(Anatidae) 12 2 0 0 0
Mandarin Duck:Aix galericulata(Anatidae) 21 16 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Mallard:Anas platyrhynchos(Anatidae) ** ** 0.00% **
Spot-billed Duck:Anas poecilorhyncha(Anatidae) 16.67% 0.00% 0.00% 0.00%
Mandarin Duck:Aix galericulata(Anatidae) 76.19% 0.00% 0.00% 0.00%
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
Source of the outbreak(s) or origin of infection
Unknown or inconclusive
Control measures
Measures applied
Movement control inside the country
Surveillance outside containment and/or protection zone
Surveillance within containment and/or protection zone
Screening
Traceability
Control of wildlife reservoirs
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
Animal and Plant Quarantine Agency (National laboratory) Mallard real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 02/12/2020 Positive
Animal and Plant Quarantine Agency (National laboratory) Mandarin Duck real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 30/11/2020 Positive
Animal and Plant Quarantine Agency (National laboratory) Spot-billed Duck real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 30/11/2020 Positive
Animal and Plant Quarantine Agency (National laboratory) Spot-billed Duck real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 01/12/2020 Positive
National institute of Wild Animal Disease (National laboratory) Mallard real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 28/11/2020 Positive
National institute of Wild Animal Disease (National laboratory) Mallard real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 04/12/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.