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Lee B.K.,Eulji University | Song Y.R.,Eulji University | Kim M.Y.,Catholic Kwandong University | Yang J.H.,Catholic Kwandong University | And 7 more authors.
Epidemiology and Infection | Year: 2010

Between January 2006 and May 2008, 2624 pregnant S. Korean women between 35-37 weeks gestation were screened for group B streptococcus (GBS). Resistance to antimicrobials was tested by disk diffusion and serotype determined using co-agglutination assays and microarray methods. Overall, 8% of pregnant women were colonized. Serotype III was the predominant serotype (438%), followed by serotypes V (203%), Ia (121%), and Ib (95%). GBS was frequently resistant to clindamycin (540%) and erythromycin (256%); 37% were resistant to cefazolin. More than three-quarters of serotype V were resistant to clindamycin or erythromycin or both, and 71% of serotype III were resistant to clindamycin but only 12% were resistant to erythromycin. GBS prevalence exceeded earlier reports by one-third. This is the first report of cefazolin resistance in Korea. These results underscore the need to establish screening measures and chemoprophylaxis guidelines regarding GBS infections in Korea. © 2009 Cambridge University Press.

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