Highly pathogenic avian influenza,
Korea (Rep. of)
Information received on 04/01/2021 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. 5
Date of start of the event 26/11/2020
Date of confirmation of the event 28/11/2020
Report date 04/01/2021
Date submitted to OIE 04/01/2021
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)
New outbreaks (9)
Outbreak 1 Sinheung-dong, Iksan-si, Jeollabuk-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 8894 0 8894 0
Affected population H5N8 HPAI was confirmed at a duck farm by the AI surveillance and monitoring program.
Outbreak 2 Gwang-ri, Gwangseok-myeon, Nonsan-si, Chungcheongnam-Do
Date of start of the outbreak 29/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Slaughterhouse
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 120000 11 11 119989 0
Affected population H5N8 HPAI was confirmed at a slaughterhouse by the AI surveillance and monitoring inspection.
Outbreak 3 Daepyeong-ri, Gokseong-eup, Gokseong-gun, Jeollanam-Do
Date of start of the outbreak 29/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 20000 50 50 19950 0
Affected population H5N8 HPAI was confirmed in a broiler duck farm.
Outbreak 4 Gunha-ri, Wolgot-myeon, Gimpo-si, Gyeonggi-Do
Date of start of the outbreak 29/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 212000 40 40 211960 0
Affected population H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 5 Sin-ri, Julpo-myeon, Buan-gun, Jeollabuk-Do
Date of start of the outbreak 30/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 50100 0 50100 0
Affected population H5N8 HPAI was confirmed in a broiler duck farm by the AI surveillance and monitoring inspection.
Outbreak 6 Bongsan-ri, Gosu-myeon, Gochang-gun, Jeollabuk-Do
Date of start of the outbreak 30/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 10000 0 10000 0
Affected population H5N8 HPAI was confirmed at a broiler duck farm by the AI surveillance and monitoring inspection.
Outbreak 7 Sucham-ri, Tongjin-eup, Gimpo-si, Gyeonggi-Do
Date of start of the outbreak 31/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 80000 17 17 79983 0
Affected population H5N8 HPAI was confirmed in a laying hen farm.
Outbreak 8 Ijo-ri, Naenam-myeon, Gyeongju-si, Gyeongsangbuk-Do
Date of start of the outbreak 31/12/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 10900 550 550 10350 0
Affected population H5N8 HPAI was confirmed at a quail farm.
Outbreak 9 Namseong-ri, Cheonggye-myeon, Muan-gun, Jeollanam-Do
Date of start of the outbreak 01/01/2021
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 77900 1030 1030 76870 0
Affected population H5N8 HPAI was confirmed in a laying hen farm.
Summary of outbreaks Total outbreaks: 9
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 589794 1698 ** 1698 588096 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** 0.29% ** 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) 30/12/2020 Positive
Animal and Plant Quarantine Agency (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 01/01/2021 Positive
Animal and Plant Quarantine Agency (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 02/01/2021 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations