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In Vitro Susceptibility of piperacillin/tazobactam Against extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae / 감염과화학요법
Infection and Chemotherapy ; : 49-51, 2008.
Article in Korean | WPRIM | ID: wpr-722163
ABSTRACT
Minimal inhibitory concentrations (MIC) of piperacillin/tazobactam were determined on 20 clinical isolates of extended-spectrum beta-lactamase (ESBL)-producing E. coli and 30 isolates of ESBL- producing Klebsiella pneumoniae. MIC50 and MIC90 for ESBL-producing E. coli were 8/4 microg/ml and 256/4 microg/mL, respectively. MIC50 and MIC90 for ESBL-producing K. pneumoniae were 8/4 microg/mL and > 512/4 microg/mL, respectively. The susceptibilities of ESBL-producing E. coli and K. pneumoniae to piperacillin/tazobactam were 80% and 60%, respectively. Of 20 ESBL-producing E. coli strains, 11 (55%) were TEM-and CTX-M-positive, and SHV-negative. Of 30 ESBL-producing K. pneumoniae strains, ten (33%) were PCR positive for SHV and negative for TEM and CTX-M.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pneumonia / Beta-Lactamases / Polymerase Chain Reaction / Escherichia / Escherichia coli / Klebsiella / Klebsiella pneumoniae Language: Korean Journal: Infection and Chemotherapy Year: 2008 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pneumonia / Beta-Lactamases / Polymerase Chain Reaction / Escherichia / Escherichia coli / Klebsiella / Klebsiella pneumoniae Language: Korean Journal: Infection and Chemotherapy Year: 2008 Type: Article