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Urban Trash Bins as Reservoirs of Multidrug-Resistant Enterococcus

Strategic Insights

— 1 min read

Researchers have discovered that urban trash bins can serve as critical reservoirs and active transmission nodes of multidrug-resistant Enterococcus. The study, published in the Journal of Hazardous Materials, found that 99.2% of the Enterococcus isolates obtained from public trash bin surfaces exhibited multidrug resistance. The findings highlight the urgent need for integrated environmental surveillance and targeted interventions within a One Health framework.

Key Takeaways:

  • Urban trash bins are a significant reservoir of multidrug-resistant Enterococcus, with 99.2% of isolates exhibiting multidrug resistance.
  • The most prevalent species of Enterococcus were E. lactis, E. casseliflavus, E. faecalis, and E. faecium.
  • ARG counts among trash-bin isolates did not significantly differ from global water- and soil-derived isolates of the same species.
  • However, individual trash-bin isolates showed high ARG diversity.
  • Two E. faecalis isolates (C166 and C175) harbored the linezolid-resistance gene optrA within conserved resistance islands.
  • Phylogenetic analysis revealed extensive cross-reservoir intermixing across 122 food-derived isolates, 384 human isolates, 402 animal isolates, 162 environmental isolates, and 18 trash bin isolates.
  • The study suggests that integrated environmental surveillance and targeted interventions within a One Health framework are necessary to address the spread of multidrug-resistant Enterococcus.

Statistics:

  • 124 Enterococcus isolates were recovered from 254 public trash bin surfaces.
  • 99.2% of the Enterococcus isolates exhibited multidrug resistance.
  • The most prevalent species of Enterococcus were E. lactis (15.3%), E. casseliflavus (11.1%), E. faecalis (23.8%), and E. faecium (20.6%).
  • 18 trash bin isolates were included in the phylogenetic analysis.
  • 384 human isolates, 402 animal isolates, 162 environmental isolates, and 122 food-derived isolates were also included in the phylogenetic analysis.

Sources:

  • "Urban trash bins as reservoirs of multidrug-resistant Enterococcus with shared resistance genes across clinical and environmental niches." Journal of Hazardous Materials, vol. 499, 2025, 140064.
  • Xiaorui Mao, et al. "Urban trash bins as reservoirs of multidrug-resistant Enterococcus with shared resistance genes across clinical and environmental niches." Journal of Hazardous Materials, vol. 499, 2025, 140064.
  • NewsRx. "Reports from University of Chinese Academy of Sciences Highlight Recent Findings in Enterococcus (Urban trash bins as reservoirs of multidrug-resistant Enterococcus with shared resistance genes across clinical and environmental niches)." Life Science Weekly, October 21, 2025, p 4735.

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