Highly pathogenic avian influenza,
Korea (Rep. of)
Information received on 12/01/2021 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. 6
Date of start of the event 26/11/2020
Date of confirmation of the event 28/11/2020
Report date 12/01/2021
Date submitted to OIE 12/01/2021
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)
New outbreaks (9)
Outbreak 1 Maeseong-ri, Byeongcheon-myeon, Cheonan-si, Chungcheongnam-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 14400 0 14400 0
Affected population H5N8 HPAI was confirmed in a broiler duck farm by the AI surveillance and monitoring inspection.
Outbreak 2 Singa-ri, Seonghwan-eup, Cheonan-si, Chungcheongnam-Do
Date of start of the outbreak 03/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 346000 96 96 345904 0
Affected population H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 3 Deunggok-ri, Bukang-myeon, Sejong
Date of start of the outbreak 04/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 137000 22 22 136978 0
Affected population H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 4 Unho-ri, Jinseo-myeon, Buan-gun, Jeollabuk-Do
Date of start of the outbreak 04/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 6200 0 6200 0
Affected population H5N8 HPAI was confirmed in a duck farm.
Outbreak 5 Yongdae-ri, Samseong-myeon, Eumseong-gun, Chungcheongbuk-Do
Date of start of the outbreak 05/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 5000 0 5000 0
Affected population H5N8 HPAI was confirmed in a duck farm.
Outbreak 6 Nosong-ri, Deokjin-myeon, Yeongam-gun, Jeollanam-Do
Date of start of the outbreak 06/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 20700 0 20700 0
Affected population H5N8 HPAI was confirmed in a broiler duck farm by the AI surveillance and monitoring inspection.
Outbreak 7 Daecheon-ri, Sugok-myeon, Jinju-si, Gyeongsangnam-Do
Date of start of the outbreak 08/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 22000 0 22000 0
Affected population H5N8 HPAI was confirmed in a broiler duck farm by the AI surveillance and monitoring inspection.
Outbreak 8 Swaeam-ri, Daegot-myeon, Gimpo-si, Gyeonggi-Do
Date of start of the outbreak 08/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 95000 30 30 94970 0
Affected population H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 9 Dongnye-ri, Gajo-myeon, Geochang-gun, Gyeongsangnam-Do
Date of start of the outbreak 09/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 20400 500 500 19900 0
Affected population H5N8 HPAI was confirmed in a broiler duck farm.
Summary of outbreaks Total outbreaks: 9
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 666700 648 ** 648 666052 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 0.10% ** 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) 04/01/2021 Positive
Animal and Plant Quarantine Agency (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 05/01/2021 Positive
Animal and Plant Quarantine Agency (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 06/01/2021 Positive
Animal and Plant Quarantine Agency (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/01/2021 Positive
Animal and Plant Quarantine Agency (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 10/01/2021 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations