Information received on 29/11/2020 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. 2
Date of start of the event 21/10/2020
Date of confirmation of the event 25/10/2020
Report date 28/11/2020
Date submitted to OIE 29/11/2020
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 influenza A virus
Serotype H5N8
Nature of diagnosis Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (01/11/2020)
Follow-up report No. 1 (16/11/2020)
Follow-up report No. 2 (28/11/2020)
New outbreaks (3)
Outbreak 1 Huan-ri, Hobeop-myeon, Icheon-si, Gyeonggi-Do
Date of start of the outbreak 11/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mandarin Duck:Aix galericulata(Anatidae) 1 0 0 0
Affected population H5N8 HPAI confirmed in wild bird feces. 1,583 wild birds of 36 species are observed in the Bok River in Icheon-si.
Outbreak 2 Geunsam-ri, Cheoin-gu, Yongin-si, Gyeonggi-Do
Date of start of the outbreak 17/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 1 0 0 0
Affected population H5N8 HPAI was confirmed in wild bird feces, 6,159 migratory birds of 40 species were observed for 3 days (13/11/2020~15/11/2020) by the National Institute of Biological Resources.
Outbreak 3 Hado-ri, Gujwa-eup, Jeju-si, Jeju-Do
Date of start of the outbreak 17/11/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mallard:Anas platyrhynchos(Anatidae) 1 0 0 0
Affected population H5N8 HPAI was confirmed in wild bird feces, 3,342 migratory birds of 34 species were observed for 3 days(13/11/2020~15/11/2020) by National Institute of Biological Resources.
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Mandarin Duck:Aix galericulata(Anatidae) 1 0 0 0
Mallard:Anas platyrhynchos(Anatidae) 2 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Mandarin Duck:Aix galericulata(Anatidae) ** ** 0.00% **
Mallard:Anas platyrhynchos(Anatidae) ** ** 0.00% **
*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 H5N8 Highly pathogenic avian influenza has been confirmed in wild birds according to the Avian influenza surveillance program.
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
Control of wildlife reservoirs
Disinfection
Vaccination permitted (if a vaccine exists)
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) Mallard reverse transcription - polymerase chain reaction (RT-PCR) 22/11/2020 Positive
national institute of enviromental research (National laboratory) Mallard reverse transcription - polymerase chain reaction (RT-PCR) 25/11/2020 Positive
National Institute of Wild Animal Diseases (National laboratory) Mandarin Duck reverse transcription - polymerase chain reaction (RT-PCR) 19/11/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.