Affiliation:
1. Department of Microbiology, Mount Sinai and Princess Margaret Hospitals, and Department of Pathobiology and Laboratory Medicine, University of Toronto, Toronto, Ontario, Canada
Abstract
ABSTRACT
Among 418 blood culture isolates of viridans group streptococci obtained between 1995 and 1997, the in vitro rates of nonsusceptibility to penicillin, erythromycin, tetracycline, and trimethoprim-sulfamethoxazole were 28, 29, 24, and 14%, respectively. The most prevalent group (125 strains) was
Streptococcus mitis
, followed by
Streptococcus sanguis
(56 strains). For 236 (56%) strains resistant to one or more antibiotics, the ciprofloxacin MIC at which 90% of the isolates were inhibited (MIC
90
) was 4 μg/ml, whereas the MIC
90
s of trovafloxacin, grepafloxacin, and gatifloxacin were 0.25 μg/ml.
Publisher
American Society for Microbiology
Subject
Infectious Diseases,Pharmacology (medical),Pharmacology
Cited by
39 articles.
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