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Antimicrobial resistance and virulence genes in Enterococcus faecium and Enterococcus faecalis from humans and retail red meat
Golob, Majda (Author), Pate, Mateja (Author), Kušar, Darja (Author), Dermota, Urška (Author), Avberšek, Jana (Author), Papić, Bojan (Author), Zdovc, Irena (Author)

URLURL - Source URL, Visit https://www.hindawi.com/journals/bmri/2019/2815279/ This link opens in a new window

Abstract
The emergence of antimicrobial-resistant and virulent enterococci is a major public health concern. While enterococci are commonly found in food of animal origin, the knowledge on their zoonotic potential is limited. The aim of this study was to determine and compare the antimicrobial susceptibility and virulence traits of Enterococcus faecalis and Enterococcus faecium isolates from human clinical specimens and retail red meat in Slovenia. A total of 242 isolates were investigated: 101 from humans (71 E. faecalis, 30 E. faecium) and 141 from fresh beef and pork (120 E. faecalis, 21 E. faecium). The susceptibility to 12 antimicrobials was tested using a broth microdilution method, and the presence of seven common virulence genes was investigated using PCR. In both species, the distribution of several resistance phenotypes and virulence genes was disparate for isolates of different origin. All isolates were susceptible to daptomycin, linezolid, teicoplanin, and vancomycin. In both species, the susceptibility to antimicrobials was strongly associated with a food origin and the multidrug resistance, observed in 29.6% of E. faecalis and 73.3% E. faecium clinical isolates, with a clinical origin (Fisher’s exact test). Among meat isolates, in total 66.0% of E. faecalis and E. faecium isolates were susceptible to all antimicrobials tested and 32.6% were resistant to either one or two antimicrobials. In E. faecalis, several virulence genes were significantly associated with a clinical origin; the most common (31.0%) gene pattern included all the tested genes except hyl. In meat isolates, the virulence genes were detected in E. faecalis only and the most common pattern included ace, efaA, and gelE (32.5%), of which gelE showed a statistically significant association with a clinical origin. These results emphasize the importance of E. faecalis in red meat as a reservoir of virulence genes involved in its persistence and human infections with reported severe outcomes.

Language:English
Keywords:Anti-bacterial agents - pharmacology, drug resistance bacterial - genetics, Enterococcus faecalis - genetics - drug effects - growth & development, Enterococcus faecium - genetics - drug effects - growth & development, virulence factors - genetics, meat - microbiology, vancomycin resistance - genetics, models animal, veterinary drugs
Work type:Article (dk_c)
Tipology:1.01 - Original Scientific Article
Organization:VF - Veterinary Faculty
Year:2019
Publisher:Hindawi Pub
Number of pages:str. 1-12
Numbering:Vol. 2019, art. ID 2815279
UDC:636.09:597
ISSN on article:2314-6141
DOI:10.1155/2019/2815279 Link is opened in a new window
COBISS.SI-ID:4816506 Link is opened in a new window
License:CC BY 4.0
This work is available under this license: Creative Commons Attribution 4.0 International
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Downloads:115
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Record is a part of a journal

Title:BioMed research international
Shortened title:Biomed Res Int
Publisher:Hindawi Pub. Co.
ISSN:2314-6141
COBISS.SI-ID:30624729 This link opens in a new window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P4-0092
Name:Zdravje živali, okolje in varna hrana

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