| Descriptive epidemiology of nationwide spread of 2003 classical swine fever epidemic in Korea |
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Choi-Kyu Park1, Eune-Sub Lee1, Hachung Yoon1, Sung-Hwan Wee1, Jae-Young Song1, Oun-Kyeong Moon1, Eun-Jin Choi1, Hyun-Soo Kim2, Joo-Ho Lee1, Su-Hwan An1 |
1National Veterinary Research and Quarantine Services
2College of Veterinary Medicine, Chungnam National University |
| 2003년 한국의 돼지콜레라 전국적 확산에 대한 기술역학 |
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박최규1, 이은섭1, 윤하정1, 위성환1, 송재영1, 문운경1, 최은진1, 김현수2, 이주호1, 안수환1 |
1국립수의과학검역원
2충남대학교 수의과대학 |
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| Abstract |
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In March 2003, classical swine fever (CSF) infection was reported in a piggery located at Iksan city, Jeollabuk-do in Korea. Subsequently, a total of 72 infected farms were confirmed between March and December, 2003. Based on epidemiological investigation of the earlier confirmed infected farms, the source of infection was shown to be from a breeding farm. Targeted surveillance of 82 piggeries that had acquired pigs from this breeding farm showed 44 piggeries were infected with CSF virus. CSF virus was introduced into this breeding farm by movement of selected breeder pigs from its 12 contracted farms which were located in areas that had been affected by CSF epidemic in late 2002. CSF had then spread through out the country mainly by direct transmission through the sale and movement of pigs from this breeding farm. Consequently, 47 (62%) among 72 CSF affected farms were associated, directly and indirectly, with this breeding farm. This study showed that inadequate control for breeding farms and transport restriction in CSF outbreak areas resulted in the nationwide spread of CSF and the failure of the eradication campaign that has been underway for several years by the Korean animal hygiene authority as well as the fanners. Improvements of control policy through further research of the 2003 CSF epidemic will be needed to reestablish the Korean CSF eradication program in the future. |
| Key Words:
classical swine fever(CSF), epidemiology, 2003, republic of Korea |
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