Background: Healthcare-associated infections caused by multi-drug resistant (MDR) pathogens are associated with increased mortality and morbidity among hospitalized patients. Inanimate surfaces, and in particular high-touch surfaces, have often been described as the source for outbreaks of nosocomial infections. The present work aimed to evaluate the efficacy of a last-generation mobile (robotic) irradiation UV-C light device R2S on MDR microorganisms in inanimate surfaces and its translation to hospital disinfection.
Methods: The efficacy of R2S system was evaluated in environmental high-touch surfaces of two separate outpatient rooms of Perugia Hospital in Italy. The static UV-C irradiation effect was investigated on both the bacterial growth of , MRSA, , and KPC and photoreactivation. The antimicrobial activity was also tested on different surfaces, including glass, steel, and plastic.
Results: In the environmental tests, the R2S system decreased the number of bacteria, molds, and yeasts of each high-touch spot surface (HTSs) compared with manual sanitization. UV-C light irradiation significantly inhibits in vitro bacterial growth, also preventing photoreactivation. UV-C light bactericidal activity on MDR microorganisms is affected by the type of materials of inanimate surfaces.
Conclusions: The last-generation mobile R2S system is a more reliable sanitizing procedure compared with its manual counterpart.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8701089 | PMC |
| http://dx.doi.org/10.3390/ijerph182413019 | DOI Listing |
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