ArticleMicrobiologyOpen2024
Multidrug-resistant Enterococcus faecium strains enter the Norwegian marine environment through treated sewage.
Article in MicrobiologyOpen, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 11 citations in OpenAlex.
- High-throughput sequencing dataset of raw and treated wastewater from Jeddah, Saudi Arabia.Data in brief · 2026Article
- Comparative core-genome MLST of vancomycin-resistant Enterococcus faecium supports the utility of wastewater-based surveillance: a pilot study.BMC microbiology · 2026Article
- A One-Health Perspective onEnvironmental health insights · 2026Review
- Urban wastewater and sewage sludge as environmental sources of antimicrobial resistance, potential pathogens, and selective agents: insights from three European wastewater treatment plants.Frontiers in cellular and infection microbiology · 2026Article
- Critical genomic insights into vancomycin-resistantMicrobiology spectrum · 2025Article
- Seasonal prevalence and antimicrobial resistance profiles inItalian journal of food safety · 2025Article
- Mechanisms of tigecycline resistance in Gram-negative bacteria: A narrative review.Engineering microbiology · 2024Review
- Microplastic-Mediated Transfer of Tetracycline Resistance: Unveiling the Role of Mussels in Marine Ecosystems.Antibiotics (Basel, Switzerland) · 2024Article
- Multidrug-resistant Enterococcus faecium strains enter the Norwegian marine environment through treated sewage.MicrobiologyOpen · 2024Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
This study aimed to understand the antibiotic resistance prevalence among Enterococcus spp. from raw and treated sewage in Bergen city, Norway. In total, 517 Enterococcus spp. isolates were obtained from raw and treated sewage from five sewage treatment plants (STPs) over three sampling occasions, with Enterococcus faecium as the most prevalent (n = 492) species. E. faecium strains (n = 307) obtained from the influent samples, showed the highest resistance against quinupristin/dalfopristin (67.8%). We observed reduced susceptibility to erythromycin (30.6%) and tetracycline (6.2%) in these strains. E. faecium strains (n = 185) obtained from the effluent samples showed highest resistance against quinupristin/dalfopristin (68.1%) and reduced susceptibility to erythromycin (24.9%) and tetracycline (8.6%). We did not detect resistance against last-resort antibiotics, such as linezolid, vancomycin, and tigecycline in any of the strains. Multidrug-resistant (MDR) E. faecium strains were detected in both influent (2.3%) and effluent (2.2%) samples. Whole genome sequencing of the Enterococcus spp. strains (n = 25) showed the presence of several antibiotic resistance genes, conferring resistance against aminoglycosides, tetracyclines, and macrolides, as well as several virulence genes and plasmid replicons. Two sequenced MDR strains from the effluents belonged to the hospital-associated clonal complex 17 and carried multiple virulence genes. Our study demonstrates that clinically relevant MDR Enterococcus spp. strains are entering the marine environment through treated sewage.
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