Efficacy of an ultraviolet-A lighting system for continuous decontamination of health care–associated pathogens on surfaces

Publication date: Available online 3 September 2019Source: American Journal of Infection ControlAuthor(s): Scott H. Livingston, Jennifer L. Cadnum, Kevin J. Benner, Curtis J. DonskeyWe found that ultraviolet-A (UV-A) light exposure resulted in a modest reduction in recovery of methicillin-resistant Staphylococcus aureus (MRSA), Candida auris, bacteriophage MS2, and bacteriophage Phi X174, but not Clostridioides difficile spores, on steel disk carriers. Four hours of UV-A exposure from a ceiling light fixture resulted in a significant reduction in pathogenic microorganisms recovered from in-use medical equipment. These findings suggest that UV-A could be useful as a means to provide continuous low-level decontamination of surfaces in health care facilities.
Source: American Journal of Infection Control - Category: Infectious Diseases Source Type: research