Chromosome-Encoded Class D β-Lactamase OXA-23 in Proteus mirabilis

Author:

Bonnet R.1,Marchandin H.2,Chanal C.1,Sirot D.1,Labia R.3,De Champs C.1,Jumas-Bilak E.4,Sirot J.1

Affiliation:

1. Laboratoire de Bactériologie, Faculté de Médecine, 63001 Clermont-Ferrand Cedex

2. Laboratoire de Bactériologie, Hôpital Arnaud de Villeneuve, 34295 Montpellier Cedex 5

3. UMR 175, CNRS-MNHN, 29000 Quimper

4. Laboratoire de Bactériologie, Faculté de Pharmacie, 34093 Montpellier Cedex 5, France

Abstract

ABSTRACT Ten nonrepetitive Proteus mirabilis isolates, which were collected over 4 years (1996 to 1999) at the teaching hospital of Clermont-Ferrand, France, produced class D carbapenemase OXA-23. MICs of imipenem were 0.25 to 0.5 μg/ml for these clinical isolates. Molecular typing revealed that the 10 P. mirabilis isolates originated from the same clonal strain. Hybridization of I- Ceu I-generated chromosome fragments with a bla OXA-23 probe showed that the gene was chromosome encoded in the P. mirabilis strain.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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