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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 370 - 381 (12page)
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Background: The clindamycin-resistant erythromycin-susceptible (CRES) phenotype is rare in Streptococcus agalactiae (group B streptococci). We aimed to determine the molecular characteristics of CRES S. agalactiae using whole genome sequencing (WGS). Methods: Sixty-six S. agalactiae isolates obtained from blood (N=26), cerebrospinal fluid (N=10), urine (N=17), and vaginal discharge (N=13) between 2010 and 2017 in Korea were subjected to WGS. Based on the WGS data, we analyzed antimicrobial resistance (AMR) determinants, sequence types (STs), capsular polysaccharide (CPS) genotypes, and virulence gene profiles, and constructed a phylogenetic tree. We included the clindamycin-susceptible erythromycin-resistant (CSER) phenotype for comparison. Results: We identified seven CRES S. agalactiae isolates from urine (N=5) and vaginal discharge (N=2) collected between 2010 and 2011. All CRES isolates harbored AMR determinants of lnu(B), lsa(E), and aac(6’)-aph(2’’), revealed ST19 and CPS genotype III, and had a virulence gene profile of rib-lmb-cylE. Phylogenetic tree analysis revealed that all CRES isolates belonged to the same cluster, suggesting a clonal distribution. In contrast, seven CSER isolates showed a diverse distribution and clustered separately from the CRES isolates. Conclusions: CRES isolates collected between 2010 and 2011 showed a unique cluster with ST19 and CPS genotype III in Korea. This is the first report on WGS-based characteristics of S. agalactiae in Korea.
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참고문헌 (24)
참고문헌 신청
Takahashi T / 2010 / Clinical aspects of invasive infections with Streptococcus dysgalactiae ssp. equisimilis in Japan: differences with respect to Streptococcus pyogenes and Streptococcus agalactiae infections / Clin Microbiol Infect 16:1097~1103
Shibayama A / 2016 / Pyogenic sternoclavicular arthritis caused by Streptococcus agalactiae in an elderly adult with diabetes mellitus / J Am Geriatr Soc 64:1376~1377
최원희 / 2017 / Persistence of Group B Streptococcus in the Urogenital Area / Annals of Laboratory Medicine 37(5):454~456
Emaneini M / 2014 / High incidence of macrolide and tetracycline resistance among Streptococcus agalactiae strains isolated from clinical samples in Tehran, Iran / Maedica (Buchar) 9:157~161
Lindahl G / 2005 / Surface proteins of Streptococcus agalactiae and related proteins in other bacterial pathogens / Clin Microbiol Rev 18:102~127
Shibayama A / 2016 / Pyogenic sternoclavicular arthritis caused by Streptococcus agalactiae in an elderly adult with diabetes mellitus / J Am Geriatr Soc 64:1376~1377
최원희 / 2017 / Persistence of Group B Streptococcus in the Urogenital Area / Annals of Laboratory Medicine 37(5):454~456
Emaneini M / 2014 / High incidence of macrolide and tetracycline resistance among Streptococcus agalactiae strains isolated from clinical samples in Tehran, Iran / Maedica (Buchar) 9:157~161
Lindahl G / 2005 / Surface proteins of Streptococcus agalactiae and related proteins in other bacterial pathogens / Clin Microbiol Rev 18:102~127
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