Prevalence and antimicrobial susceptibility of Brachyspira species in pigs in Korea.
- Author:
Suk Kyung LIM
1
;
Hee Soo LEE
;
Hyang Mi NAM
;
Yun Sang CHO
;
Suk Chan JUNG
;
Yi Seok JOO
Author Information
1. Animal, Plant, and Fisheries Quarantine and Inspection Agency, Anyang 430-757, Korea. imsk0049@korea.kr
- Publication Type:Original Article
- Keywords:
antimicrobial susceptibility;
Brachyspira;
pigs;
prevalence
- MeSH:
Brachyspira;
Korea;
Prevalence;
Swine
- From:Korean Journal of Veterinary Research
2012;52(4):253-257
- CountryRepublic of Korea
- Language:English
-
Abstract:
The purpose of this study was to investigate the prevalence of Brachyspira species and antimicrobial susceptibility of Brachyspira (B.) hyodysenteriae isolates in Korea. A total of fifty-five Brachyspira species were isolated; five (1.0%) beta-hemolytic Brachyspira species and 50 (10.4%) weak hemolytic Brachyspira species from 116 different diarrheic pig samples and 367 apparently normal pig samples. In farm level, beta hemolytic and weak hemolytic Brachyspira species were detected in 7.4% (5/68) and 19.1% (13/68) of tested pig farms, respectively. By phenotypic and genotypic characterization, all beta hemolytic Brachyspira isolates was classified as group I (B. hyodysenteriae), whereas weak hemolytic Brachyspira species isolates were group III (B. innocens or B. murdochii). B. hyodysenteriae isolates showed high level of minimum inhibition concentrations to macrolide antimicrobials. This study shows that the prevalence of pathogenic B. hyodysenteriae in pigs is low but antimicrobial resistance of the pathogens is high in Korea. This is the first report of the prevalence of Brachyspira group III and antimicrobial susceptibility of B. hyodysenteriae in pigs in Korea. Our results could provide basic data for the management and treatment guidelines of Brachyspira infection.
