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Antimicrobial Agents and Chemotherapy, February 2006, p. 791-795, Vol. 50, No. 2
0066-4804/06/$08.00+0     doi:10.1128/AAC.50.2.791-795.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

PCR Classification of CTX-M-Type ß-Lactamase Genes Identified in Clinically Isolated Gram-Negative Bacilli in Japan

Naohiro Shibata, Hiroshi Kurokawa, Yohei Doi, Tetsuya Yagi, Kunikazu Yamane, Jun-ichi Wachino, Satowa Suzuki, Kouji Kimura, Satoshi Ishikawa, Haru Kato, Yoshiyuki Ozawa, Keigo Shibayama, Kumiko Kai, Toshifumi Konda, and Yoshichika Arakawa*

Department of Bacterial Pathogenesis and Infection Control, National Institute of Infectious Diseases, Tokyo, Japan

Received 26 March 2005/ Returned for modification 15 June 2005/ Accepted 1 November 2005

Of 1,456 strains isolated from 2001 to 2003 demonstrating resistance to either oxyimino-cephalosporin, 317 strains, isolated in 57 of 132 clinical facilities, were found to harbor blaCTX-M genes by PCR. Fifty-seven, 161, and 99 strains harbored blaCTX-M genes belonging to the blaCTX-M-1, blaCTX-M-2, and blaCTX-M-9 clusters, respectively.

* Corresponding author. Mailing address: Department of Bacterial Pathogenesis and Infection Control, National Institute of Infectious Diseases, 4-7-1 Gakuen, Musashi-Murayama, Tokyo 208-0011, Japan. Phone: 81-42-561-0771, ext. 500. Fax: 81-42-561-7173. E-mail: yarakawa{at}nih.go.jp.

Antimicrobial Agents and Chemotherapy, February 2006, p. 791-795, Vol. 50, No. 2
0066-4804/06/$08.00+0     doi:10.1128/AAC.50.2.791-795.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Suzuki, S., Shibata, N., Yamane, K., Wachino, J.-i., Ito, K., Arakawa, Y. (2009). Change in the prevalence of extended-spectrum-{beta}-lactamase-producing Escherichia coli in Japan by clonal spread. J Antimicrob Chemother 63: 72-79 [Abstract] [Full Text]  
  • Xu, L., Evans, J., Ling, T., Nye, K., Hawkey, P. (2007). Rapid Genotyping of CTX-M Extended-Spectrum {beta}-Lactamases by Denaturing High-Performance Liquid Chromatography. Antimicrob. Agents Chemother. 51: 1446-1454 [Abstract] [Full Text]  
  • Ensor, V. M., Livermore, D. M., Hawkey, P. M. (2007). A novel reverse-line hybridization assay for identifying genotypes of CTX-M-type extended-spectrum {beta}-lactamases. J Antimicrob Chemother 59: 387-395 [Abstract] [Full Text]  


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