Highly Pathogenic Avian Influenza in the Republic of Korea
KOREA - This is a Follow-up report (No. 2) via OIE on the recent outbreak of Avian Influenza in Korea
16 February 2004
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See also: 19 December 2003, 12 December 2003
Information received on 7 February 2004 from Dr Chang-Seob Kim, Chief Veterinary Officer, Animal Health Division, Ministry of Agriculture and Forestry (MAF), Gwacheon:
End of previous report period: 16 December 2003 (see Disease Information, 16 [51], 276, dated 19 December 2003).
End of this report period: 6 February 2004.
New outbreaks:
| Location | No. of outbreaks |
| Chnonam Province, Naju city | 1 |
| Chungbuk Province, Eumsung district | 3 |
| Chungbuk Province, Jincheon district | 1 |
| Chungnam Province, Cheonan city | 5 |
| Chungnam Province, Asan city | 1 |
| Kyongbuk Province, Kyongju city | 2 |
| Kyonggi Province, Icheon city | 1 |
| Kyongnam Province, Yangsan city | 1 |
| Ulsan Metropolitan, Ulju district | 1 |
| Total | 16 |
Description of affected population in the new outbreaks: 8 duck farms, 7 chicken farms, and 1 chicken-and-duck mixed farm.
Total number of animals in the new outbreaks:
| species | susceptible | cases | deaths | destroyed | slaughtered |
| avi | 348,418 | ... | 57,176 | 291,242 | 0 |
Diagnosis:
A. Laboratory where diagnosis was made: National Veterinary Research and Quarantine Service (NVRQS), Anyang, Kyonggi.
B. Diagnostic tests used: polymerase chain reaction (PCR) and haemagglutination inhibition test.
C. Causal agent: avian influenza virus subtype H5N1.
Epidemiology:
A. Source of agent / origin of infection: unknown; under investigation.
B. Mode of spread: unknown; under investigation.
Control measures during reporting period:
- Every duck or chicken within a 3-km radius of the affected farms was culled.
- Movement restrictions were applied to the affected farms, relevant hatcheries and other farms within a 10-km radius of the affected farms.
- Movement restrictions on poultry, feed, manure, egg trays and instruments.
- Disinfection and extensive surveillance was performed around the farms within a 10-km radius of the affected farms.
- Dead and killed poultry were buried.
- Eggs within a 3-km radius of the affected farms were destroyed.
- Screening.
Vaccination is prohibited.
Source: Office International des Epizooties - 13th February 2004
