| molecular characterization and genetic diversity of esbl-producing escherichia coli colonizing the migratory franklin's gulls (leucophaeus pipixcan) in antofagasta, north of chile. | the role of wild animals, particularly migratory birds, in the dissemination of antibiotic-resistant bacteria between geographically distant ecosystems is usually underestimated. the aim of this work was to characterize the escherichia coli population from franklin's gull feces, focusing on the extended-spectrum β-lactamase (esbl)-producing strains. in the summer of 2011, 124 fecal swabs from seagulls (1 of each) migrating from the united states and canada to the coast of antofagasta, north of c ... | 2015 | 25313843 |