Information received on 18/02/2021 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. 10
Date of start of the event
26/11/2020
Date of confirmation of the event
28/11/2020
Report date
18/02/2021
Date submitted to OIE
18/02/2021
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)
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)
Follow-up report No. 9 (07/02/2021)
Follow-up report No. 10 (18/02/2021)
New outbreaks (10)

Outbreak 1
Juwon-ri, changsu-myeon, Pocheon-si, Gyeonggi-Do
Date of start of the outbreak
07/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
160000
69
69
159931
0
Affected population
H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 2
Boryong-ri, Wonnam-myeon, Eumseong-gun, Chungcheongbuk-Do
Date of start of the outbreak
09/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
9400
0
0
9400
0
Affected population
H5N8 HPAI was confirmed in a duck farm by the AI surveillance and monitoring inspection.
Outbreak 3
Sasan-ri, Jusan-myeon, Buan-gun, Jeollabuk-Do
Date of start of the outbreak
09/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
14700
0
0
14700
0
Affected population
H5N8 HPAI was confirmed in a broiler duck farm by the AI surveillance and monitoring inspection.
Outbreak 4
Daesa-ri, Paengseong-eup, Pyeongtaek-si, Gyeonggi-Do
Date of start of the outbreak
09/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
240000
0
0
240000
0
Affected population
H5N8 HPAI was confirmed in a laying hen farm by the AI surveillance and monitoring inspection.
Outbreak 5
Heungdeok-ri, Bannam-myeon, Naju-si, Jeollanam-Do
Date of start of the outbreak
11/02/2021
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
H5N8 HPAI was confirmed in a duck farm.
Outbreak 6
Geumak-ri, Hanlim-eup, Jeju-si, Jeju-Do
Date of start of the outbreak
12/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
5550
0
0
5550
0
Affected population
H5N8 HPAI was confirmed in a duck farm.
Outbreak 7
Dorip-ri, Baeksa-ri, Icheon-si, Gyeonggi-Do
Date of start of the outbreak
13/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
119000
100
100
118900
0
Affected population
H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 8
gasan-ri, Bubal-eup, Icheon-si, Gyeonggi-Do
Date of start of the outbreak
13/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
241000
65
65
240935
0
Affected population
H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 9
Dongo-ri, Godeok-myeon, Pyeongtaek-si, Gyeonggi-Do
Date of start of the outbreak
15/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
370000
45
45
369955
0
Affected population
H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 10
Homun-ri, Jangsu-myeon, Yeongju-si, Gyeongsangbuk-Do
Date of start of the outbreak
15/02/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
7000
0
0
7000
0
Affected population
H5N8 HPAI was confirmed in a duck farm by the AI surveillance and monitoring inspection.
Summary of outbreaks
Total outbreaks: 10
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
1178650
279
279
1178371
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
0.02%
0.02%
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)
08/02/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
10/02/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
11/02/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
12/02/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
13/02/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
14/02/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
16/02/2021
Positive
Animal and Plant Quarantine Agency (National laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
17/02/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.