Information received on 29/01/2021 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. 8
Date of start of the event
26/11/2020
Date of confirmation of the event
28/11/2020
Report date
29/01/2021
Date submitted to OIE
29/01/2021
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
17/03/2018
Manifestation of disease
Clinical disease
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)
Follow-up report No. 5 (04/01/2021)
Follow-up report No. 6 (12/01/2021)
Follow-up report No. 7 (19/01/2021)
Follow-up report No. 8 (29/01/2021)
New outbreaks (14)

Outbreak 1
Oksan-ri, Baekam-myeon, Yongin-si, Gyeonggi-Do
Date of start of the outbreak
18/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
190000
375
375
189625
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm.
Outbreak 2
Imgok-ri, Saenggeuk-myeon, Eumseong-gun, Chungcheongbuk-Do
Date of start of the outbreak
18/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
400000
120
120
399880
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm.
Outbreak 3
Narae-ri, Janghowon-eup, Icheon-si, Gyeonggi-Do
Date of start of the outbreak
21/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
478000
433
433
477567
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm.
Outbreak 4
Suheol-ri, Seobuk-gu, Cheonan-si, Chungcheongnam-Do
Date of start of the outbreak
22/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
99000
400
400
98600
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm.
Outbreak 5
Wangsan-ri, Samhyang-eup, Muan-gun, Jeollanam-Do
Date of start of the outbreak
22/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
97000
450
450
96550
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm.
Outbreak 6
Sachang-ri, Yanggam-myeon, Hwaseong-si, Gyeonggi-Do
Date of start of the outbreak
23/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
602100
50
50
602050
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm by the AI surveillance and monitoring inspection.
Outbreak 7
Samchuk-ri, Nasan-myeon, Hampyeong-gun, Jeollanam-Do
Date of start of the outbreak
24/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
12000
0
0
12000
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a broiler duck farm by the AI surveillance and monitoring inspection.
Outbreak 8
Samseongdang-ri, Sinbuk-myeon, Pocheon-si, Gyeonggi-Do
Date of start of the outbreak
26/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
39000
20
20
38980
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm.
Outbreak 9
Eoyuji-ri, Jeokseong-myeon, Paju-si, Gyeonggi-Do
Date of start of the outbreak
26/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
137000
20
20
136980
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm.
Outbreak 10
Wahyeon-ri, Janghowon-eup, Icheon-si, Gyeonggi-Do
Date of start of the outbreak
26/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
24000
19
19
23981
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a broiler breeder farm.
Outbreak 11
Jangam-ri, iljuk-myeon, Anseong-si, Gyeonggi-Do
Date of start of the outbreak
26/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
19000
60
60
18940
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a broiler breeder farm.
Outbreak 12
Seongsan-ri, Asan-myeon, Gochang-gun, Jeollabuk-Do
Date of start of the outbreak
27/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
36000
0
0
36000
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a broiler duck farm by the AI surveillance and monitoring inspection.
Outbreak 13
Dongsin-ri, Bogae-myeon, Anseong-si, Gyeonggi-Do
Date of start of the outbreak
27/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
29000
16
16
28984
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm.
Outbreak 14
Majeong-ri, Gongdo-eup, Anseong-si, Gyeonggi-Do
Date of start of the outbreak
28/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
79000
30
30
78970
0
Affected population
Highly pathogenic avian influenza H5N8 was confirmed in a laying hen farm.
Summary of outbreaks
Total outbreaks: 14
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
2241100
1993
1993
2239107
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
0.09%
0.09%
100.00%
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
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)
19/01/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
20/01/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
22/01/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
23/01/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
25/01/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
27/01/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
28/01/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
29/01/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.