Influence of antibiotic selection on genetic composition of Escherichia coli populations from conventional and organic dairy farms.

ABSTRACT: The widespread agricultural use of antimicrobials has long been considered a crucial influence on the prevalence of resistant genes and bacterial strains. It has been suggested that antibiotic applications in agricultural settings are a driving force for the development of antimicrobial resistance, and epidemiologic evidence supports the view that there is a direct link between resistant human pathogens, retail produce, farm animals, and farm environments. Despite such concerns, little is understood about the population processes underlying the emergence and spread of antibiotic resistance and the reversibility of resistance when antibiotic selective pressure is removed. In this study, hierarchical log-linear modeling was used to assess the association between farm type (conventional versu

SUBMITTER: Walk ST 

PROVIDER: S-EPMC2074991 | biostudies-literature | 2007 Oct

REPOSITORIES: biostudies-literature