Comparative studies on activities of antimicrobial agents against causative organisms isolated from patients with urinary tract infections (2002). III. Secular changes in susceptibility
2004
: The bacteria (Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Klebsiella spp. and Pseudomonas aeruginosa) isolated from patients diagnosed as urinary tract infections (UTIs) in 13 institutions in Japan were supplied between August 2002 and July 2003. The susceptibilities of these bacteria to various antimicrobial agents were examined. The bacteria were divided into 2 groups consisting of uncomplicated UTIs and complicated UTIs (with and without indwelling catheter) based on their isolation origins. The results were compared with those obtained between 1993 and 2001. The drug sensitivity of S. aureus in this year was similar to those in up to the previous year and S. aureus showed the best susceptibility to vancomycin. The drug sensitivity of E. faecalis in this year also was similar to those in up to the previous year. The drug sensitivity of E. coli in this year was generally good except penicillins and was similar to those in up to the previous year. Among cephems, cefozopran (CZOP) and cefpirome (CPR) showed the highest potency (MIC90: or = 256 microg/mL) were detected at 22.2% (2/9 strains) in the uncomplicated UTIs group and 3.6% (2/56 strains) in the complicated UTIs group.
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