Changing Molecular Epidemiology of Group B Streptococcus in Korea

Overview

Journal J Korean Med Sci

Specialty General Medicine

Date 2010 Jun 2

PMID 20514299

Citations 19

Authors

Yong Soo Seo

Usha Srinivasan

Kwan-Young Oh

Jung-Hwan Shin

Jeong Don Chae

Moon Young Kim

Jae Hyug Yang

Hye-Ryung Yoon

Brady Miller

Joan DeBusscher

Betsy Foxman

Moran Ki

Affiliations

Soon will be listed here.

Abstract

The prevalence of group B streptococcus (GBS) among pregnant women and disease burdens in neonates and adults are increasing in Korea. Colonizing isolates, collected by screening pregnant women (n=196), and clinical isolates collected from clinical patients throughout Korea (n=234), were serotyped and screened for antibiotic resistance. Serotype III (29.8%) and V (27.7%) predominated, followed by Ia (17.0%). Antibiotic resistance was higher among clinical than colonizing isolates for erythromycin (35.1% and 26.9%; P=0.10) and for clindamycin (49.4% and 42.1%; P=0.17). erm(B) occurred in 91.9% of erythromycin resistant isolates, and 84.0% of isolates resistant to clindamycin. Only five isolates (4.2%) resistant to erythromycin were susceptible to clindamycin; by contrast, and unique to Korea, 34% of isolates resistant to clindamycin were erythromycin susceptible. Among these 60 erythromycin-susceptible & clindamycin-resistant isolates, 88% was serotype III, and lnu(B) was found in 89% of strains. Four fifths of the serotype V isolates were resistant to both erythromycin and clindamycin. Further characterization of the genetic assembly of these resistance conferring genes, erm(B) and lnu(B), will be useful to establish the clonal lineages of multiple resistance genes carrying strains.

Citing Articles

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