The effect of pulsed xenon ultraviolet light disinfection on healthcare-associated Clostridioides difficile rates in a tertiary care hospital

Am J Infect Control. 2020 Sep;48(9):1116-1118. doi: 10.1016/j.ajic.2019.12.019. Epub 2020 Jan 22.


Ultraviolet (UV) light has destructive activity against pathogenic bacteria including Clostridioides difficile spores. Portable pulsed-xenon UV disinfecting devices were implemented for terminal room cleaning in 6 units of our academic hospital with high C. difficile infection (CDI) rates. CDI rates were measured in a 9-month period before and a 9-month period after device implementation. Despite documented administration of UV disinfection for 87% of terminal room cleaning, no impact on CDI rates was detected.

Keywords: Devices; HAI rates; Infection rates; Terminal cleaning.

MeSH terms

  • Clostridioides
  • Clostridioides difficile*
  • Cross Infection* / prevention & control
  • Delivery of Health Care
  • Disinfection
  • Humans
  • Tertiary Care Centers
  • Ultraviolet Rays*
  • Xenon


  • Xenon