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  • Practical disk diffusion test for detecting group B streptococcus with reduced penicillin susceptibility.

Practical disk diffusion test for detecting group B streptococcus with reduced penicillin susceptibility.

Journal of clinical microbiology (2009-10-09)
Kouji Kimura, Jun-Ichi Wachino, Hiroshi Kurokawa, Satowa Suzuki, Kunikazu Yamane, Naohiro Shibata, Yoshichika Arakawa
PMID19812274
ABSTRACT

Although group B streptococcus (GBS) has been considered to be uniformly susceptible to beta-lactams, the presence of GBS with reduced penicillin susceptibility (PRGBS) was recently confirmed genetically. We developed a feasible and reliable method for screening PRGBS in clinical microbiology laboratories using a combination of ceftibuten, oxacillin, and ceftizoxime disks.