Information received on 30/12/2020 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. 4
Date of start of the event
26/11/2020
Date of confirmation of the event
28/11/2020
Report date
30/12/2020
Date submitted to OIE
30/12/2020
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 avian influenza virus
Serotype
H5N8
Nature of diagnosis
Laboratory (advanced)
This event pertains to
the whole country
Related reports
Immediate notification (30/11/2020)
Follow-up report No. 1 (05/12/2020)
Follow-up report No. 2 (12/12/2020)
Follow-up report No. 3 (21/12/2020)
Follow-up report No. 4 (30/12/2020)
New outbreaks (15)

Outbreak 1
Munchon-ri, Wonsam-myeon, Yongin-si, Gyeonggi-Do
Date of start of the outbreak
20/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
6000

0
6000
0
Affected population
H5N8 HPAI was confirmed in surveillance inspection at the duck farm.
Outbreak 2
Dangjin-ri, Jeomdong-myeon, Yeoju-si, Gyeonggi-Do
Date of start of the outbreak
21/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
156000
300
300
155700
0
Affected population
H5N8 HPAI was confirmed in a laying hen farm by Animal and Plant Quarantine Agency(APQA).
Outbreak 3
Munchon-ri, Gamgok-myeon, Eumseong-gun, Chungcheongbuk-Do
Date of start of the outbreak
22/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
6000

0
6000
0
Affected population
H5N8 HPAI was confirmed in the duck farm by Animal and Plant Quarantine Agency(APQA).
Outbreak 4
Sangsin-ri, Hyangnam-eup, Hwaseong-si, Gyeonggi-Do
Date of start of the outbreak
22/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
311000
32
32
310968
0
Affected population
H5N8 HPAI was confirmed in a laying hen farm by Animal and Plant Quarantine Agency(APQA).
Outbreak 5
Gwanpung-ri, Samae-myeon, Namwon-si, Jeollabuk-Do
Date of start of the outbreak
22/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
40000

0
40000
0
Affected population
H5N8 HPAI was confirmed in a surveillance inspection at a broiler duck farm.
Outbreak 6
Sindo-ri, Yongbang-myeon, Gurye-gun, Jeollanam-Do
Date of start of the outbreak
23/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
16000

0
16000
0
Affected population
H5N8 HPAI was confirmed in a surveillance inspection at a broiler duck farm.
Outbreak 7
Yongjeong-ri, Yongbang-myeon, Gurye-gun, Jeollanam-Do
Date of start of the outbreak
23/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
16500

0
16500
0
Affected population
H5N8 HPAI was confirmed in a surveillance inspection at a broiler duck farm.
Outbreak 8
Jungdong-ri, Jusaeng-myeon, Namwon-si, Jeollabuk-Do
Date of start of the outbreak
23/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
13500

0
13500
0
Affected population
H5N8 HPAI was confirmed in a surveillance inspection at a broiler duck farm.
Outbreak 9
Daeheung-ri, Seongnam-myeon, Cheonan-si, Chungcheongnam-Do
Date of start of the outbreak
24/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
10700

0
10700
0
Affected population
H5N8 HPAI was confirmed in a surveillance inspection at the duck farm.
Outbreak 10
Seokgok-ri, Godeok-myeon, Yesan-gun, Chungcheongnam-Do
Date of start of the outbreak
25/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
34700
700
700
34000
0
Affected population
H5N8 HPAI was confirmed in a surveillance inspection at a broiler breeder hen farm.
Outbreak 11
Sindang-ri, Cheonbuk-myeon, Gyeongju-si, Gyeongsangbuk-Do
Date of start of the outbreak
25/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
8000
63
63
7937
0
Affected population
H5N8 HPAI was confirmed in a surveillance inspection at a laying hen farm.
Outbreak 12
Dangok-ri, Ibam-myeon, Jeongeup-si, Jeollabuk-Do
Date of start of the outbreak
27/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
13800

0
13800
0
Affected population
H5N8 HPAI was confirmed in surveillance inspection at a broiler duck farm.
Outbreak 13
Marae-ri, Neungseo-myeon, Yeoju-si, Gyeonggi-Do
Date of start of the outbreak
28/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
208300
186
186
208114
0
Affected population
H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 14
Gojan-ri, Cheongbuk-eup, Pyeongtaek-si, Gyeonggi-Do
Date of start of the outbreak
28/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
26500
30
30
26470
0
Affected population
H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 15
Naeyu-dong, Deokyang-gu, Goyang-si, Gyeonggi-Do
Date of start of the outbreak
28/12/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
931
3
3
928
0
Summary of outbreaks
Total outbreaks: 15
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
867931
1314 **
1314
866617
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
**
0.15%
**
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
Epidemiological comments
The epidemiological investigation is ongoing.

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
Quarantine
Official destruction of animal products
Official disposal of carcasses, by-products and waste
Control of wildlife reservoirs
Disinfection
Vaccination prohibited
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)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
23/12/2020
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
24/12/2020
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
25/12/2020
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
26/12/2020
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
27/12/2020
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
28/12/2020
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
29/12/2020
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.