Open AccessPrevalence of Non-Penicillin-Susceptible Group B Streptococcus in Philadelphia and Specificity of Penicillin Resistance Screening Methods
Author(s) -
Kei Kasahara,
Andrew Baltus,
Lee SunHwa,
M. A. C. Edelstein,
Paul H. Edelstein
Publication year - 2010
Publication title -
journal of clinical microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.349
H-Index - 255
eISSN - 1070-633X
pISSN - 0095-1137
DOI - 10.1128/jcm.02296-09
Subject(s) - ceftizoxime , penicillin , broth microdilution , microbiology and biotechnology , streptococcus , agar , streptococcaceae , antibiotics , biology , penicillin resistance , medicine , cephalosporin , bacteria , minimum inhibitory concentration , genetics
A total of 1,991 group B streptococcus (GBS) isolates, collected in 2008 and 2009, were tested for non-penicillin susceptibility by broth microdilution, disk testing, and oxacillin screening agar. No GBS isolates were non-penicillin susceptible. Oxacillin and ceftizoxime disk testing results showed that proposed screening criteria are nonspecific. The oxacillin screening agar was specific but of unknown sensitivity.