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Int J Antimicrob Agents. 2005 Apr;25(4):296-301.

Evaluation of antimicrobial activity of beta-lactam antibiotics using Etest against clinical isolates from 60 medical centres in Japan.

Author information

1
Department of Microbiology, Toho University School of Medicine, 5-21-16 Omori-nishi, Ota-ku, 1438540 Tokyo, Japan. yoishii@med.toho-u.ac.jp

Abstract

An antimicrobial resistance surveillance study was carried out in 60 medical centres across Japan. Resistance to piperacillin was 10.8% in clinical isolates of Escherichia coli, while 1.3% or fewer isolates were resistant to other beta-lactams. Klebsiella spp. were more susceptible to imipenem, cefepime and cefpirome. Isolates of Enterobacter spp., Citrobacter spp., indole-positive Proteus and Serratia spp. were susceptible to imipenem, cefepime and cefpirome, while Acinetobacter spp. were most susceptible to cefoperazone/sulbactam, imipenem, ceftazidime (5.8% resistance) and cefepime (7.6%). Isolates of Pseudomonas aeruginosa were more susceptible to ceftazidime (12.3% resistance), cefoperazone/sulbactam (12.5%) and cefepime (12.6%) than to piperacillin (15.0%), cefpirome (22.6%) and imipenem (30.8%). The percentage of Japanese imipenem resistant P. aeruginosa clinical isolates was around 30%.

[Indexed for MEDLINE]

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