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Volume 14, Number 2—February 2008

Research

Dissemination of Clonally Related Escherichia coli Strains Expressing Extended-Spectrum β-Lactamase CTX-M-15

Teresa M. Coque*†‡Comments to Author , Ângela Novais*†‡, Alessandra Carattoli§, Laurent Poirel¶, Johann Pitout#**, Luísa Peixe††, Fernando Baquero*†‡, Rafael Cantón*†‡, and Patrice Nordmann¶
Author affiliations: *Hospital Universitario Ramón y Cajal, Madrid, Spain; †Unidad de Resistencia a Antibióticos y Virulencia Bacteriana Asociada al Consejo Superior de Investigaciones Científicas, Madrid, Spain; ‡El Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública, Madrid, Spain; §Istituto Superiore di Sanità, Rome, Italy; ¶Hospital Bicetre, Paris, France; #Calgary Laboratory Services, Calgary, Alberta, Canada; **University of Calgary, Calgary, Alberta, Canada; ††Universidade do Porto, Porto, Portugal;

Main Article

Figure

Computer analysis of a subset of representative HpaI restriction profiles of IncF CTX-M-15 plasmids from Escherichia coli isolates in the Appendix Table. Cluster analysis was done by using Fingerprinting II in Informatix software version 3.0 (Bio-Rad Laboratories, Hercules, CA, USA) and applying the unweighted pair group method with arithmetic averages (optimization 0.5%, tolerance 1.00%). Ph, phylogenetic; ST, sequence type; RFLP, restriction fragment length polymorphism; Can, Canada; Fra, France; Por, Portugal; Swi, Switzerland; Ind, India; Kuw, Kuwait; Sp, Spain.

Figure. Computer analysis of a subset of representative HpaI restriction profiles of IncF CTX-M-15 plasmids from Escherichia coli isolates in the Appendix Table. Cluster analysis was done by using Fingerprinting II in Informatix software version 3.0 (Bio-Rad Laboratories, Hercules, CA, USA) and applying the unweighted pair group method with arithmetic averages (optimization 0.5%, tolerance 1.00%). Ph, phylogenetic; ST, sequence type; RFLP, restriction fragment length polymorphism; Can, Canada; Fra, France; Por, Portugal; Swi, Switzerland; Ind, India; Kuw, Kuwait; Sp, Spain.

Main Article

The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.

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