Antimicrobial Resistance of <i>Salmonella</i> and Characterization of Two <i>Mcr-1</i>-Harboring Isolates from Pork Products in Guangdong, China.

ABSTRACT: Salmonella is a major foodborne pathogen that poses an increasing threat due to the emergence of mcr-1-mediated colistin resistance. However, data on mcr-1-positive Salmonella in pork products are limited. In this study, 457 samples collected in 2023 from pig slaughterhouses in Guangdong province were investigated to determine the prevalence and genomic characteristics of mcr-1-positive Salmonella isolates. We found that 92 Salmonella isolates (20.1%, 92/457) were recovered, representing six serotypes, including Salmonella Typhimurium (n = 29) and Salmonella Rissen (n = 29). High resistance to tetracycline (90.2%, 83/92) and multidrug resistance (58.7%, 54/92) were observed. Critically, two colistin-resistant S

SUBMITTER: Mai Z 

PROVIDER: S-EPMC12427947 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature