Korean Journal of Veterinary Research (대한수의학회지)

The Korean Society of Veterinary Science (대한수의학회)
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Seroepidemiological study on porcine cytomegalovirus to pigs in Korea

국내 사육 돈군내 Porcine cytomegalovirus에 관한 혈청역학적 연구

  • Kang, Mun-il (College of Veterinary Medicine, Chonnam National University) ;
  • Han, Mi (College of Veterinary Medicine, Chonnam National University) ;
  • Tajima, Tomoko (Department of veterinary Science, Osak Prefecture University) ;
  • Han, Dong-un (College of Veterinary Medicine, Chonnam National University) ;
  • Kim, Hee-sun (College of Veterinary Medicine, Chonnam National University) ;
  • Kim, Byung-han (Department of Virology, National Veterinary Research and Qurantine Service) ;
  • Kim, Hong-jib (Institute of Animal Science, Daesang Co, Ltd) ;
  • Ahn, Soo-hwan (Department of Virology, National Veterinary Research and Qurantine Service)
  • 강문일 (전남대학교 수의과대학) ;
  • 한미 (전남대학교 수의과대학) ;
  • ;
  • 한동운 (전남대학교 수의과대학) ;
  • 김희선 (전남대학교 수의과대학) ;
  • 김병한 (국립수의과학검역원 바이러스과) ;
  • 김홍집 (대상(주) 축산과학연구소) ;
  • 안수환 (국립수의과학검역원 바이러스과)
  • Received : 1998.05.02
  • Published : 1998.12.22
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Abstract

The purpose of this study was to investigate the confirmation and prevalence of porcine cytomegalovirus (PCMV) infection of pigs in Korea using enzyme-linked immunosorbent assay (ELISA). Four hundred-eighty one sera tested were collected from the areas of Kyonggi, Kangwon, Chungcheong, Cholla, Gyongsang and Cheju during the year of 1991 to 1997 except 1994. PCMV antigen, OF-1 strain, for ELISA, was prepared 19-PFT-F cell line originated from porcine fallopian tube. Positive control was used by sera made from the specific pathogen free piglets which were infected with OF-1 strain. Three hundred-sixty seven of 481 sera (76.3%) were positive against PCMV. Antibody titers of these seropositives were classified by 129 (26.8%) cases in more than 1 : 12,800, 77 (16.0%) in 1 : 6,400, 76 (15.8%) in 1 : 3,200, 44 (9.2%) in 1 : 1,600, and 41 (8.5%) in 1 : 800, respectively. Also, the seropositive pigs were divided by 87.4% (76/87) in older than 6 month-old, 73.9% (238/322) in 2~6-month old, and 73.6% (53/72) in less than 2-month old, respectively. Regional prevalence rate of PCMV infection in Korea showed 89.7% (70/78) in Chungchong, 79.8/% (83/104) in Cholla, 79.4% (143/180) in Kyonggi, 79.3% (42/53) in Gyongsang, 50% (15/30) in Kangwon, and 38.9% (14/36) in Cheju area, respectively. In the sera collected in 1991, seropositive rate was appeared as 90.2% (37/41). From 1992 to 1997 except 1994, the average infection rate to PCMV was 77.5%. Consequently, these results confirmed that PCMV in Korean piggeries was introduced at least before the year of 1991. More importantly, PCMV infection has been prevailing nation-wide in pig herds in Korea.

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Acknowledgement

Supported by : 전남대학교 학술진흥재단