Prevalence and diversity of extended-spectrum ß-lactamases in faecal Escherichia coli isolates from healthy humans in Spain  L. Vinué, Y. Sáenz, S. Martínez,

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Prevalence and diversity of extended-spectrum ß-lactamases in faecal Escherichia coli isolates from healthy humans in Spain  L. Vinué, Y. Sáenz, S. Martínez, S. Somalo, M.A. Moreno, C. Torres, M. Zarazaga  Clinical Microbiology and Infection  Volume 15, Issue 10, Pages 954-957 (October 2009) DOI: 10.1111/j.1469-0691.2009.02803.x Copyright © 2009 European Society of Clinical Infectious Diseases Terms and Conditions

FIG. 1 Genetic environments of the blaCTX-M genes detected among the extended-spectrum β-lactamase-positive Escherichia coli strains studied (the intergenic X, Y and W regions have been previously reported [9,21]). Clinical Microbiology and Infection 2009 15, 954-957DOI: (10.1111/j.1469-0691.2009.02803.x) Copyright © 2009 European Society of Clinical Infectious Diseases Terms and Conditions