Dairy Products: A Potential Source of Multidrug-Resistant Enterococcus faecalis and Enterococcus faecium Strains.

Content Provider	Europe PMC
Author	Gołaś-Prądzyńska, Marlena Łuszczyńska, Magdalena Rola, Jolanta Grażyna
Editor	Chajȩcka-Wierzchowska, Wioleta Caggia, Cinzia
Copyright Year	2022
Abstract	This study attempts to present the antimicrobial resistance, virulence and resistance genes of Enterococcus faecalis and Enterococcus faecium isolated from raw goat’s and sheep’s milk and cheese. Strains were identified by PCR. The dominant species was E. faecalis (77.8%) and was most often isolated from raw goat’s milk. The percentage of antimicrobial-resistant E. faecalis isolates was higher than that of E. faecium isolates, the former most frequently resistant to lincomycin (98%), tetracycline (63%) and streptomycin (16%). Fourteen (22.3%) E. faecalis and 2 (11.1%) E. faecium isolates were identified as multidrug-resistant (MDR). All MDR E. faecalis strains also had virulence genes, whereas one of the two E. faecium strains had them. The most prevalent virulence genes in E. faecalis isolates were asa1 (69.8%) and gelE (57.1%). The most prevalent resistance genes found in both bacterial species were tet(M) (43.2%) and vgaA (22.2%). Enterococci from dairy products are confirmed to be a potential source of the spread of antimicrobial resistance, MDR strains, and virulence and resistance genes. This study highlights several aspects of the virulence and pathogenicity of E. faecalis and E. faecium isolated from dairy products—aspects which are indications for their ongoing monitoring.
Journal	Foods (Basel, Switzerland)
Volume Number	11
PubMed Central reference number	PMC9778350
Issue Number	24
PubMed reference number	36553858
e-ISSN	23048158
DOI	10.3390/foods11244116
Language	English
Publisher	MDPI
Publisher Date	2022-12-19
Access Restriction	Open
Rights License	Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). © 2022 by the authors.
Subject Keyword	Enterococcus faecium Enterococcus faecalis dairy resistance genes antimicrobial resistance virulence genes multidrug resistant strains MDR
Content Type	Text
Resource Type	Article
Subject	Microbiology Health (social science) Health Professions Food Science Plant Science