Antimicrobial resistance of Yersinia enterocolitica and presence of plasmid pYV virulence genes in human and animal isolates

New Microbes New Infect. 2019 Oct 7:32:100604. doi: 10.1016/j.nmni.2019.100604. eCollection 2019 Nov.

Abstract

Interactions between bacterial virulence and antimicrobial resistance are of increasing interest in clinical microbiology. On this account, antimicrobial resistance of Yersinia enterocolitica O:3 strains isolated from humans (n = 55), food-chain animals (n = 58) and companion animals (n = 13) was determined in relation to the absence or presence of the pYV plasmid-encoded virulence genes yadA and virF. There were no statistically significant associations between the rate of antimicrobial resistance and the presence or absence of the plasmid, in either human-derived or animal-derived strains. Therefore, it can be concluded that response to conventionally used antimicrobials in Y. enterocolitica O:3 strains is not dependent on pYV-encoded virulence determinants.

Keywords: Antimicrobial resistance; Yersinia enterocolitica; pYV plasmid; virF; yadA.