Activities of Doripenem (S-4661) against Drug-Resistant Clinical Pathogens
Open Access
- 1 August 2004
- journal article
- research article
- Published by American Society for Microbiology in Antimicrobial Agents and Chemotherapy
- Vol. 48 (8) , 3136-3140
- https://doi.org/10.1128/aac.48.8.3136-3140.2004
Abstract
Doripenem (formerly S-4661), a new 1-β-methyl carbapenem, was challenged with a worldwide collection of 394 drug-refractory isolates. For endemic extended-spectrum β-lactamase- and stably derepressed AmpC-producing enteric bacilli, the doripenem MICs at which 90% of the isolates were inhibited (MIC 90 s) were 0.03 to 0.5 μg/ml, generally lower than those of comparator carbapenems. A greater proportion of strains among carbapenem-resistant nonfermentative gram-negative bacilli were inhibited by doripenem at ≤4 μg/ml, and doripenem was the most active carbapenem (MIC 90 , 1 to 4 μg/ml) against penicillin-resistant streptococci.Keywords
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