ESBL-producing Escherichia coli and Klebsiella pneumoniae: The most prevalent clinical isolates obtained between 2005 and 2012 in Mexico

The present study showed an epidemiological change in terms of bacterial species, placing E. coli as the most frequently isolated bacteria among ESBL-producing Enterobacteriaceae in Mexico, followed by K. pneumoniae. This frequency is accompanied by a high frequency of ESBL CTX-M-15.