New PreMiEr Preprint: Cleaning Hospital Sink Drains Reshapes Microbial Communities Without Sterilizing Them
A new PreMiEr preprint finds that enhanced sink drain cleaning in hospitals reduces dangerous pathogens by driving ecological replacement rather than sterilization, with no effect on nearby countertop surfaces.
A 35-week study of hospital sink microbiomes finds that enhanced antimicrobial cleaning of sink drains significantly reduces dangerous pathogen-associated bacteria in plumbing components, but has no effect on countertop surfaces nearby. Analyzing nearly 2,000 samples across 30 hospital rooms, PreMiEr researchers found that treated sinks lost half their bacterial diversity but were taken over by environmental bacteria rather than being sterilized. Critically, genera containing ESKAPEE pathogens were far more abundant in untreated sinks, while treated sinks developed alternative community states that appeared to resist pathogen colonization. The findings, posted to Zenodo, challenge sterilization-based thinking and suggest that ecological replacement may be a more realistic and effective goal for hospital sink management.
Read more here: https://doi.org/10.5281/zenodo.19557132