Korean Journal of Veterinary Service (한국동물위생학회지)
- Volume 14 Issue 2
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- Pages.110-120
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- 1991
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- 3022-7372(pISSN)
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- 2287-7630(eISSN)
Studies on Physico-chemical Properties an d Pathogenicity of Porcine Enterovirus Isolated from Feces of Pigherds
돼지 분변 유래 PORCINE ENTEROVIRUS의 물리화학적 특성 및 병원성에 관한 연구
Abstract
28 porcine enteroviruses were isolated from 86 pig-feces of 9 swine farms located in south region, Chung-buk, from March to September 1990. Physico-chemical properties and pathogenicity of isolates were investigated. Results obtained throughout experiments are summarized as follows. According to the age, weanlings(40-90 days), sucklings(10-30 days) and adult pigs(6 months over) showed the isolation rate of 67%. 8% and 4%, respectively. By physico-chemical tests, YD-90/22, YD-90/43 and YD-90/64 strains were found to be ether, chloroform and PH stable. Nucleic acid test suggests the virus to have a DNA genome. Most of the Isolates were not evident of hemagglutinin using erythrocytes from various mammalian & avian. 22 strains among the isolates were shown CPE type I and the remainders were CPE type II. 3 strains among isolates of CPE type I strains were neutralized with high titers to serotype 2 antiserum. In the study on virus growth curve in PK-l5 cells, YD-90/22, YD-90/43 and YD-90/64 strains showed the maximum infectivity titers(