Molecular Epidemiology and Genetic Profile of Non-Typhoidal Salmonella Serovars Isolated From Poultry Production Chain in Khorasan Province, Iran: A Comprehensive Analysis of Prevalence, Virulence Genes, and Antibiotic Resistance.

ABSTRACT: Non-typhoidal Salmonella (NTS) serovars are important foodborne zoonotic pathogens that threaten human health and contribute to the evolution and global dissemination of antibiotic resistance. This study investigated the virulence characteristics, antibiotic susceptibility, serovar distribution, and antimicrobial resistance determinants of 132 NTS isolates obtained from the poultry production chain in Khorasan Province, Iran, between 2018 and 2020. Salmonella Infantis was the predominant serovar, accounting for 53.8% of isolates, followed by S. Enteritidis (20.5%), S. Typhimurium (3.8%), and 22% of isolates could not be typed by multiplex PCR and were categorized as non-typed Salmonella. Based on antibiotic susceptibility tests, most Salmonella isolates exhibited high resistance to tiamuli

SUBMITTER: Zavari A 

PROVIDER: S-EPMC12774793 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature