Prevalence and serotypes of Streptococcus suis from pigs in Korea

Jung, Byeong-yeal; Jung, Suk-chan; Kim, Bong-hwan; Park, Yong-ho; Park, Jeung-moon

Korean Journal of Veterinary Research 1997;37(3):577-582.

Byeong-yeal Jung¹, Suk-chan Jung¹, Bong-hwan Kim², Yong-ho Park³, Jeung-moon Park⁴

¹National Veterinary Research Institute
²College of Veterinary Medicine, Kyungpook National University
³College of Veterinary Medicine, Seoul National University
⁴Korea Microbiological Laboratories, LTD

국내 돼지의 Streptococcus suis 감염율 조사 및 혈청형 동정

정병열¹, 정석찬¹, 김봉환², 박용호³, 박정문⁴

¹국립수의과학연구소
²경북대학교 수의과대학
³서울대학교 수의과대학
⁴한국미생물연구소

Abstract

To investigate the prevalence of Streptococcus suis in pig industry in Korea, we isolated S suis from pigs during two years. The isolates were identified by biochemical and coagglutination test. Serotypes and antimicrobial susceptibility of the isolates were determined. Fourteen strains(12.2%), 11 strains(27.5%), 58 strains(7.8%) and 4 strains(11.1%) of S suis were isolated from 115 nasal swabs, 40 tonsils of healthy pigs, 745 pneumonic lungs and 36 meningitis of diseased pigs, respectively. The isolates were highly susceptible to ampicillin, cephlothin and ofloxacin while they were resistant to oxytetracycline. Among the isolates, 63(75.9%) strains were to the S suis capsular type 1 to 10 and 11(13.3%) strains were untypable. Capsular type 2 was the most prevalent with 32(38.6%) strains of all isolates.

Key Words: Streptococcus suis, prevalence, MIC, serotype