Clonal Diversity of Metallo-β-Lactamase-Possessing Pseudomonas aeruginosa in Geographically Diverse Regions of Japan

Author:

Kimura Soichiro1,Alba Jimena1,Shiroto Katsuaki1,Sano Reiko2,Niki Yoshihito3,Maesaki Shigefumi4,Akizawa Koji5,Kaku Mitsuo6,Watanuki Yuji7,Ishii Yoshikazu1,Yamaguchi Keizo1

Affiliation:

1. Department of Microbiology, Toho University School of Medicine, Tokyo

2. Nara Medical University, Nara

3. Kawasaki Medical School, Okayama

4. Saitama Medical School, Saitama

5. Hokkaido University Hospital, Sapporo

6. Tohoku University Graduate School of Medicine, Miyagi

7. Kanagawa Cardiovascular and Respiratory Diseases Center, Kanagawa, Japan

Abstract

ABSTRACT The aim of this study was to determine the distribution of metallo-β-lactamase-producing Pseudomonas aeruginosa in Japan and to investigate the molecular characteristics of resistance gene cassettes including the gene encoding this enzyme. A total of 594 nonduplicate strains of P. aeruginosa isolated from 60 hospitals throughout Japan in 2002 were evaluated. This study indicated that although the prevalence of imipenem-resistant P. aeruginosa has not increased compared to that found in previous studies, clonal distribution of the same strain across Japan is evident.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

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