Impact of no-touch ultraviolet light room disinfection systems on Clostridioides difficile infections

Published:August 25, 2020DOI:


      • Clostridioides difficile spores can survive on hospital surfaces for long periods.
      • Ultraviolet light disinfection decreases pathogenic bacteria in the environment.
      • Ultraviolet light systems in 3 hospitals did not reduce C. difficile infections.
      • Hospital C. difficile rates were low, and manual cleaning compliance was high.
      • Ultraviolet light disinfection may have limited benefit in these settings.
      Ultraviolet light (UVL) room disinfection has emerged as an adjunct to manual cleaning of patient rooms. Two different no-touch UVL devices were implemented in 3 health system hospitals to reduce Clostridioides difficile infections (CDI). CDI rates at all 3 facilities remained unchanged following implementation of UVL disinfection. Preintervention CDI rates were generally low, and data from one hospital showed high compliance with manual cleaning, which may have limited the impact of UVL disinfection.

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