Molecular characterization of ESBL-producing Escherichia coli isolates from hospital- and community-acquired infections in NW Mexico.

We investigated the molecular characteristics of ESBL-producing E. coli (ESBL-PEc) isolates from two hospitals and community settings in Ciudad Obregon, Sonora, Mexico. Between 2011 and 2014, thirty-seven ESBL-PEc isolates were collected.