Molecular Diversity of ESBL-Producing from Foods of Animal Origin and Human Patients.

Dissemination of enterobacteria that produce extended spectrum β-lactamases (ESBL) throughout the food chain has become an important health concern. This work aimed to evaluate the occurrence of ESBL-producing bacteria in foods of animal origin and to investigate the similarities between food and human isolates. The presence of beta-lactam-resistant Enterobacteriaceae was analyzed in 108 food samples, isolating 10 strains of , one strain of , and one of isolates were compared to a group of 15 strains isolated from human patients by antibiotic susceptibility testing, characterization of ESBL genes (, ,), multilocus sequence typing (MLST) and pulse-field gel electrophoresis (PFGE).