ArticleCurrent microbiology2023
First Report of a Wastewater Treatment-Adapted Enterococcus faecalis ST21 Harboring vanA Gene in Brazil.
Article in Current microbiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 4 citations in OpenAlex.
- Dissemination of vancomycin-resistant Enterococcus faecalis and Enterococcus faecium between humans and fishes.Scientific reports · 2026Article
- Gut microbiota and resistome profiles of Swiss expatriates in Africa revealed by Nanopore metagenomics.Scientific reports · 2026Article
- Deciphering vancomycin resistance inFrontiers in microbiology · 2025Article
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Authors and funding
10 authors at 4 institutions in 1 country.
Funding
Abstract
Enterococcus faecalis has emerged as an important opportunistic pathogen due to its increasing resistance to antimicrobials, mainly to vancomycin, which leads substantial cases of therapeutic failures. Wastewater treatment plants (WWTP), in turn, are considered hotpots in the spread of antimicrobial resistance according to One Health perspective. In this study, we present the first report of a vancomycin-resistant E. faecalis strain recovered from treated effluent in Brazil. For this purpose, the whole-genome sequencing (WGS) was carried out aiming to elucidate its molecular mechanisms of antimicrobial resistance and its phylogenetic relationships amongst strains from other sources and countries. According to Multilocus Sequence Typing (MLST) analysis this strain belongs to ST21. The WGS pointed the presence of vanA operon, multiple antibiotic resistance and virulence genes, and a significant pathogenic potential for humans. The phylogenomic analysis of E. faecalis 6805 was performed with ST21 representatives from the PubMLST database, including the E. faecalis IE81 strain from clinical sample in Brazil, which had its genome sequenced in this study. Our results demonstrated a strain showing resistance to vancomycin in treated effluent. To the best of our knowledge, this is an unprecedented report of vanA-carrying E. faecalis ST21. Furthermore, it is the first description of a vanA-harboring strain of this species from environmental sample in Brazil. Our data highlight the role of WWTP in the spread of AMR, since these environments are favorable for the selection of multidrug-resistant pathogens and the treated effluents, carrying antibiotic resistance genes, are directed to receiving water bodies.
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