Ampicillin susceptibilities of vaginal and placental isolates of group B streptococcus and Escherichia coli obtained between 1992 and 1994 | Zendy

Leslie A. Meyn | Zendy; Sharon L. Hillier | Zendy

Open Access

Ampicillin susceptibilities of vaginal and placental isolates of group B streptococcus and Escherichia coli obtained between 1992 and 1994

Author(s) -

Leslie A. Meyn,

Sharon L. Hillier

Publication year - 1997

Publication title -

antimicrobial agents and chemotherapy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.07

H-Index - 259

eISSN - 1070-6283

pISSN - 0066-4804

DOI - 10.1128/aac.41.5.1173

Subject(s) - ampicillin , escherichia coli , microbiology and biotechnology , streptococcus agalactiae , group b , streptococcus , biology , streptococcaceae , antibiotics , bacteria , medicine , genetics , gene

Vaginal group B streptococcus (GBS) and Escherichia coli isolates were tested for their susceptibilities to ampicillin. All 414 GBS isolates tested were susceptible to ampicillin; the MIC at which 90% of the isolates were inhibited (MIC90) was 0.125 microg/ml, and the range was 0.06 to 0.25 microg/ml. The MIC50 for the 342 E. coli isolates tested was 4.0 microg/ml, and 27% were resistant to ampicillin.

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