Advances in Enterococcus Associated with Wildlife

A special issue of Microbiology Research (ISSN 2036-7481).

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 2697

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Guest Editor
Post-Graduation Program in Agricole and Environmental Microbiology, Department of Microbiology, Immunology and Parasitology, Federal University of Rio Grande do Sul, Porto Alegre 90050-170, Brazil
Interests: antimicrobial susceptibility testing; PCR; DNA; genotyping; antimicrobial resistance; primer

Special Issue Information

Dear Colleagues,

Wild animals play a significant role in balancing the environment, as well as in maintaining a balance in both terrestrial and aquatic ecosystems. This importance can be categorized as ecological, economic, investigatory, and conservation of biological diversities.

The anthropogenic impact on the environment has forced wild animals to live near human settlements, which has resulted in negative outcomes for wildlife conservation. In addition, contamination of water and soil by urban and/or industrial effluent with antibiotics and/or heavy metals also negatively affects the environment and wildlife.

In this context, some biological agents isolated from wild animals could be used as indicators of ecosystem disturbance. Among microorganisms, enterococci are considered sentinels of humans in nature and might serve to evaluate anthropogenic effects.

Enterococci are commensal microorganisms in the gastrointestinal tracts of humans and animals. Some species of enterococci have been receiving attention due to the increased frequency of antimicrobial resistance and virulence. On the other hand, several strains have shown antimicrobial (bacteriocins) activity against pathogenic microorganisms.

This Topic welcomes publications that focus on any aspect of Enterococcus isolated from wild animals, including species distribution, resistance, virulence profile, mobile genetic elements, bacteriocin production, and/or diseases.

Prof. Dr. Ana Paula Guedes Frazzon
Guest Editor

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Keywords

  • enterococci
  • wildlife
  • bacteriogenic strains
  • resistance
  • genomic
  • virulence
  • diseases

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Published Papers (1 paper)

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Research

11 pages, 532 KiB  
Article
Isolation of a Multidrug-Resistant vanA-Positive Enterococcus faecium Strain from a Canine Clinical Sample in Greece
by Marios Lysitsas, Eleftherios Triantafillou, Ioannis Tzavaras, Panagiota Karamichali, Kiriakos Agathaggelidis, Constantina N. Tsokana, Esmeralda Dushku, Anna Katsiaflaka, Charalambos Billinis and George Valiakos
Microbiol. Res. 2023, 14(2), 603-613; https://doi.org/10.3390/microbiolres14020042 - 30 Apr 2023
Viewed by 1958
Abstract
An Enterococcus faecium strain was obtained from a paraprostatic cyst of a 17-year-old dog in Greece. Antibiotic susceptibility testing (AST) was accomplished by disc diffusion and MIC methods, and the isolate demonstrated a multidrug-resistant (MDR) phenotype against a great variety of antibiotics, such [...] Read more.
An Enterococcus faecium strain was obtained from a paraprostatic cyst of a 17-year-old dog in Greece. Antibiotic susceptibility testing (AST) was accomplished by disc diffusion and MIC methods, and the isolate demonstrated a multidrug-resistant (MDR) phenotype against a great variety of antibiotics, such as β-Lactams, Quinolones, Macrolides, Tetracyclines, Rifampin, Nitrofurantoin, and surprisingly, Glycopeptides, Fosfomycin and Gentamicin (high-level). Molecular screening for Vancomycin resistance genes was carried out, and a vanA gene cluster was identified. To our knowledge, this is the first report of a vanA-positive E. faecium strain isolated from a companion animal in Greece. Importantly, this strain was related with the presence of paraprostatic cysts, a pathological condition requiring treatment. The presence of a highly resistant isolate in a canine clinical sample and the consequent need for treatment constitutes a new challenge for veterinarians due to the lack of available treatment options. Our findings indicate the occurrence of respective bacteria in companion animals, which could act as a reservoir of epidemic MDR strains or relevant mobile genetic elements (MGE) in the community, constituting a threat for public health. Full article
(This article belongs to the Special Issue Advances in Enterococcus Associated with Wildlife)
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