Prevalence of Third-Generation Cephalosporin-Resistant Salmonella in Animals in China: The Key Role of ESBL, AmpC, and Other β-Lactamase Strains in the Genome.
OBJECTIVE To elucidate the drug resistance characteristics, epidemiological distribution, and molecular mechanisms of third-generation cephalosporin-resistant Salmonella from animal sources in China during 2016-2024. METHODS Antimicrobial susceptibility testing, serotyping, and whole-genome sequencing (WGS) were empl...