Genomic analysis of antibiotic resistance genes and mobile genetic elements in eight strains of nontyphoid <i>Salmonella</i>

Human nontyphoidal salmonellosis is one of the common causes of bacterial food-borne illnesses, with significant social and economic impacts, especially those caused by invasive multidrug-resistant nontyphoidal <i>Salmonella</i>, which entails high morbidity and mortality. Antimicrobial resistance is mainly mediated by drug resistance genes, and mobile genetic elements play key roles in the capture, accumulation, and dissemination of antimicrobial resistance genes. Therefore, it is necessary to study the epidemiological characteristics and horizontal transfer mechanisms of antimicrobial resistance genes of nontyphoidal <i>Salmonella</i> to prevent the spread of multidrug-resistant nontyphoidal <i>Salmonella</i>.