| dissemination of oxa-23-producing and carbapenem-resistant acinetobacter baumannii in a university hospital in tunisia. | ninety-nine carbapenem-resistant acinetobacter baumannii isolates were obtained from patients hospitalized between october 2005 and january 2007 at the university hospital sahloul, sousse, tunisia. thirteen of those isolates produced the carbapenem-hydrolyzing oxacillinase oxa-23. all the oxa-23-positive isolates were clonally related, and the bla(oxa-23) gene was found to be chromosomally located and associated with an upstream-located insertion sequence isaba1. this study further highlights th ... | 2008 | 19018672 |
| carbapenem-resistant acinetobacter baumannii isolates from tunisia producing the oxa-58-like carbapenem-hydrolyzing oxacillinase oxa-97. | the basis of the beta-lactam resistance of 39 multidrug-resistant acinetobacter baumannii isolates recovered from hospitalized patients was studied. these isolates were collected from 2001 to 2005 at the sahloul hospital in sousse, tunisia. they belonged to two distinct clones. one clone that grouped 19 isolates produced a carbapenem-hydrolyzing oxacillinase, oxa-97, that differed from oxa-58 by a single amino acid substitution and conferred the same beta-lactam resistance profile as oxa-58. the ... | 2008 | 18299404 |