Clonal and Plasmid-Mediated Dissemination of Multidrug-Resistant Salmonella Enteritidis in Chicken Production, Northeastern Thailand.

ABSTRACT:

Background

The global dissemination of multidrug-resistant (MDR) Salmonella poses a persistent and serious threat to food safety systems. As a leading poultry-exporting country, Thailand requires a comprehensive understanding of how resistance plasmids spread among Salmonella populations within its chicken production chain.

Methods

Between March 2023 and February 2024, 223 Salmonella isolates were collected from chicken slaughterhouses and markets in northeastern Thailand. From these, 19 representative MDR Salmonella enterica isolates, selected based on distinct spatiotemporal distributions, underwent whole-genome sequencing. Genomic analyses included sequence typing, core-genome phylogenetics, and screening for antimicrobial resistance genes. Pla

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC12844969 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature