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Man-made microbial resistances in built environments.

Alexander Mahnert1, Christine Moissl-Eichinger2,3, Markus Zojer4

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This summary is machine-generated.

Increased cleaning in clinical settings reduces microbial diversity, leading to a rise in antimicrobial resistance. Restoring bacterial diversity is crucial for public health and combating resistance.

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Area of Science:

  • Microbiology
  • Environmental Science
  • Public Health

Background:

  • Antimicrobial resistance (AMR) poses a significant global health threat.
  • The impact of microbial control strategies on the human-associated microbiota and its resistome remains poorly understood.

Purpose of the Study:

  • To compare the surface microbiota of clinical settings with other built environments.
  • To investigate the relationship between microbial control, diversity, and antimicrobial resistance.

Main Methods:

  • Utilized advanced metagenomics techniques.
  • Employed genome and plasmid reconstruction for detailed analysis.

Main Results:

  • Higher confinement and cleaning correlated with reduced microbial diversity.
  • Observed a shift from Gram-positive to Gram-negative bacteria (e.g., Proteobacteria).
  • Highly maintained environments exhibited distinct resistomes and increased resistance gene diversity.

Conclusions:

  • Loss of microbial diversity is linked to increased antimicrobial resistance.
  • Strategies to restore bacterial diversity in built environments are necessary to mitigate AMR.