Information received on 29/12/2020 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. 6
Date of start of the event
21/10/2020
Date of confirmation of the event
25/10/2020
Report date
29/12/2020
Date submitted to OIE
29/12/2020
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)
Follow-up report No. 4 (13/12/2020)
Follow-up report No. 5 (21/12/2020)
Follow-up report No. 6 (29/12/2020)
New outbreaks (9)

Outbreak 1
Hwanggye-dong, Hwaseong-si, Gyeonggi-Do
Date of start of the outbreak
15/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Spot-billed Duck:Anas poecilorhyncha(Anatidae)
8
2
0
0
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in two out of eight spot-billed ducks by the Animal and Plant Quarantine Agency (APQA).
Outbreak 2
Hadan-dong, Saha-gu, Busan Metropolitan City
Date of start of the outbreak
16/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Northern Pintail:Anas acuta(Anatidae)
180
1
0
0
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in one out of one hundred eighty Northern pintails by the National Institute of Wildlife Disease Control and prevention (NIWDC)
Outbreak 3
Hado-ri, Gujwa-eup, Jeju-si, Jeju-Do
Date of start of the outbreak
16/12/2020
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
Highly pathogenic avian influenza H5N8 was confirmed in wild bird feces by the National Institute of Wildlife Disease Control and prevention (NIWDC)
Outbreak 4
Yongdang-ri, Guryong-myeon, Buyeo-gun, Chungcheongnam-Do
Date of start of the outbreak
17/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Tufted Duck:Aythya fuligula(Anatidae)

1
0
0
0
Outbreak 5
Seoksan-ri, Uichang-gu, Changwon-si, Gyeongsangnam-Do
Date of start of the outbreak
19/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Whooper Swan:Cygnus cygnus(Anatidae)

1
1
0
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in one dead whooper swan by the National Institute of Wildlife Disease Control and prevention (NIWDC)
Outbreak 6
Geumsan-ri, Uichang-gu, Changwon-si, Gyeongsangnam-Do
Date of start of the outbreak
20/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Whooper Swan:Cygnus cygnus(Anatidae)

1
1
0
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in one dead whooper swan by the National Institute of Wildlife Disease Control and prevention (NIWDC)
Outbreak 7
Sanghong-ri, Eumam-myeon, Seosan-si, Chungcheongnam-Do
Date of start of the outbreak
20/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Whooper Swan:Cygnus cygnus(Anatidae)

1
1
0
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in one dead whooper swan by the National Institute of Wildlife Disease Control and prevention (NIWDC)
Outbreak 8
Daedan-ri, Haeryong-myeon, Suncheon-si, Jeollanam-Do
Date of start of the outbreak
20/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Eurasian Spoonbill:Platalea leucorodia(Threskiornithidae)

1
1
0
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in one dead Eurasian spoonbill by the National Institute of Wildlife Disease Control and prevention (NIWDC)
Outbreak 9
Yongi-dong, Pyeongtaek-si, Gyeonggi-Do
Date of start of the outbreak
21/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Other
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Spot-billed Duck:Anas poecilorhyncha(Anatidae)

1
1
0
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in one spot-billed duck by the National Institute of Wildlife Disease Control and prevention (NIWDC)
Summary of outbreaks
Total outbreaks: 9
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Spot-billed Duck:Anas poecilorhyncha(Anatidae)
8
3
1
0
0
Northern Pintail:Anas acuta(Anatidae)
180
1
0
0
0
Mallard:Anas platyrhynchos(Anatidae)

1
0
0
0
Tufted Duck:Aythya fuligula(Anatidae)

1
0
0
0
Whooper Swan:Cygnus cygnus(Anatidae)

3
3
0
0
Eurasian Spoonbill:Platalea leucorodia(Threskiornithidae)

1
1
0
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Spot-billed Duck:Anas poecilorhyncha(Anatidae)
**
**
33.33%
**
Northern Pintail:Anas acuta(Anatidae)
0.56%
0.00%
0.00%
0.00%
Mallard:Anas platyrhynchos(Anatidae)
**
**
0.00%
**
Tufted Duck:Aythya fuligula(Anatidae)
**
**
0.00%
**
Whooper Swan:Cygnus cygnus(Anatidae)
**
**
100.00%
**
Eurasian Spoonbill:Platalea leucorodia(Threskiornithidae)
**
**
100.00%
**
*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)
23/12/2020
Positive
Animal and Plant Quarantine Agency (National laboratory)
Spot-billed Duck
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
21/12/2020
Positive
National Institute of Wildlife Disease Control and prevention (NIWDC) (National laboratory)
Eurasian Spoonbill
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
26/12/2020
Positive
National Institute of Wildlife Disease Control and prevention (NIWDC) (National laboratory)
Spot-billed Duck
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
26/12/2020
Positive
National Institute of Wildlife Disease Control and prevention (NIWDC) (National laboratory)
Tufted Duck
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
23/12/2020
Positive
National Institute of Wildlife Disease Control and prevention (NIWDC) (National laboratory)
Whooper Swan
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
26/12/2020
Positive
National Institute of Wildlife Disease Control and prevention (NIWDC) (National laboratory)
Northern Pintail
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
22/12/2020
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.