Characterization of antimicrobial resistance in indicator and pathogenic bacteria from retail meat in Wyoming

The goal of this study was to investigate the prevalence, antimicrobial resistance (AMR) phenotypes, and AMR genetic determinants in bacteria isolated from retail meat samples sold in southeastern Wyoming. The study focused on Escherichia coli, Salmonella, and Enterococcus spp. and assessed the prevalence and resistance patterns of these bacteria in different types of meat sold in retail supermarkets. The study identified multi-drug resistant (MDR) Salmonella and E. coli isolates, as well as a variety of AMR genes, including those for resistance to carbapenems, quinolones, and sulfonamides. The study highlights the need for surveillance and monitoring of AMR in the food supply chain and the potential for transfer of AMR genes between bacteria, emphasizing the importance of responsible use of antimicrobials in both human and animal healthcare. This study provides valuable baseline data for future studies aimed at reducing the incidence of AMR in food-producing animals and in the human population.