Antimicrobial resistance, virulence gene profiles, and phylogenetic groups of Escherichia coli isolated from healthy broilers and broilers with colibacillosis in Thailand.

ABSTRACT:

Background

Multidrug resistance in Escherichia coli has a significant global impact on poultry production. This study aimed to determine the phenotypic and genotypic backgrounds of antimicrobial resistance (AMR) and virulence gene profiles of E. coli strains isolated from diseased and healthy broilers. A total of 211 E. coli isolates were recovered from diseased (n = 110) and healthy broilers (n = 101). All the isolates were subjected to antimicrobial susceptibility testing. A PCR-based technique was applied to screen AMR genes, virulence genes and analyze phylogenetic groups.

Results

Phylogenetic groups B1 and D were the most prevalent for E. coli isolated from diseased and healthy birds. Among virulence genes, the detection rates of cva/cvi, iutA, iucD, iroN, iss and ompT

SUBMITTER: Laopiem S 

PROVIDER: S-EPMC11889816 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature