Journal
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
Volume 27, Issue 1, Pages 77-80Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijantimicag.2005.09.013
Keywords
DHA-1 cephalosporinase; Escherichia coli; Croatia
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Three Escherichia coli isolates resistant to third-generation cephalosporins but negative for extended-spectrum P-lactamase production were isolated from hospitalised patients in Zagreb, Croatia, during June 2003 to February 2004. Resistance was due to the inducible production of a DHA-1 cephalosporinase. Each isolate contained an integron-associated bla(DHA-1)-ampR sequence carried by similar-sized plasmids, of which one was self-transferable. Serotyping and polymerase chain reaction typing using ERIC2 primer indicated that the isolates were distinct. This is the first description of DHA beta-lactamase production in E. coli. (c) 2005 Elsevier B.V. and the International Society of Chemotherapy. All rights reserved.
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