This study was performed to estimate the seroprevalence of PRRSV in breeding farms in Jeju 2008 using a commercial enzyme-linked immunosorbent assay (ELISA) kit. The tested sera were randomly collected from a total of 1,947 sera from 9 breeding farms unvaccinated in Jeju. As a result, all breeding farms were seropositive for PRRSV. Seven hundred-eighty six of 1,947 sera (40.4%) were positive for PRRSV. Seropositve rate of PRRSV infection in 9 farms showed various levels: 1%, 8.9%, 9.1%, 43%, 46.9%, 48.2%, 51.6%, 60.9%, 85.5%, respectively. The results confirmed that PRRSV infection has been prevailing in breeding farms in Jeju. Also, these results must be taken into a consideration in strategy establishment for the control and eradication of PRRS.

• 최은진(국립수의과학검역원) | Eun-Jin Choi (National Veterinary Research and Quarantine Service) Correspondence
• 이창희(국립수의과학검역원) | Chang-Hee Lee (National Veterinary Research and Quarantine Service)
• 송재영(국립수의과학검역원) | Jae-Young Song (National Veterinary Research and Quarantine Service)
• 임성인(국립수의과학검역원) | Seong-In Lim (National Veterinary Research and Quarantine Service)
• 하종철(제주특별자치도 동물위생시험소) | Jong-Cheol Ha (Veterinary Service Laboratory)