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Antibiotic resistance in the environment.

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Antibiotic resistance spreads globally through bacteria and genes in humans, animals, and environments. Understanding environmental factors is key to managing this health crisis.

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Area of Science:

  • Environmental science
  • Microbiology
  • Public health

Background:

  • Antibiotic resistance poses a significant global health threat, driven by the exchange of resistant bacteria and genes across diverse ecosystems.
  • Pathogens continuously acquire new resistance mechanisms, complicating the treatment of bacterial infections and necessitating a comprehensive understanding of resistance dynamics.

Purpose of the Study:

  • To review current knowledge on the environment's role in antibiotic resistance evolution and transmission.
  • To identify drivers, bottlenecks, and risk scenarios associated with environmental antibiotic resistance.
  • To discuss surveillance methods and propose mitigation strategies for the antibiotic resistance crisis.

Main Methods:

  • Literature review synthesizing current evidence on environmental antibiotic resistance.
  • Analysis of pathways, drivers, and bottlenecks in resistance evolution and transmission.
  • Discussion of risk assessment, surveillance techniques, and mitigation actions.

Main Results:

  • The environment plays a multifaceted role in antibiotic resistance, acting as a site for evolution, a conduit for transmission, and a reflection of clinical resistance patterns.
  • Antibiotic pollution is a significant factor influencing resistance development and spread.
  • While rare evolutionary events are hard to predict, common transmission events of resistant strains are quantifiable.

Conclusions:

  • Quantifying environmental resistance pathways and identifying key drivers are crucial for managing the global antibiotic resistance crisis.
  • Effective surveillance and targeted interventions are needed to mitigate risks associated with environmental antibiotic resistance.
  • A One Health approach, integrating human, animal, and environmental perspectives, is essential for combating antibiotic resistance.