Microbiology and Clinical Microbiology Section, Department of Medicine and Surgery, University of Perugia, 06129 Perugia, Italy.
Unit of Human, Clinical and Forensic Anatomy, Department of Medicine and Surgery, University of Perugia, 06129 Perugia, Italy.
Int J Environ Res Public Health. 2021 Dec 10;18(24):13019. doi: 10.3390/ijerph182413019.
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.
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.
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.
The last-generation mobile R2S system is a more reliable sanitizing procedure compared with its manual counterpart.
医疗保健相关感染由多药耐药（MDR）病原体引起，与住院患者的死亡率和发病率增加有关。无生命的表面，特别是高接触表面，通常被描述为医院感染爆发的源头。本研究旨在评估新型移动（机器人）照射紫外线 C 光设备 R2S 对无生命表面上 MDR 微生物的功效，并将其转化为医院消毒。
在意大利佩鲁贾医院的两个单独的门诊室的环境高接触表面评估了 R2S 系统的功效。研究了静态紫外线 C 照射对 、MRSA、 和 KPC 的细菌生长以及光复活的影响。还测试了不同表面（包括玻璃、钢和塑料）的抗菌活性。
在环境测试中，与手动消毒相比，R2S 系统降低了每个高接触点表面（HTS）的细菌、霉菌和酵母菌数量。紫外线 C 光照射显著抑制体外细菌生长，还能防止光复活。紫外线 C 光对 MDR 微生物的杀菌活性受无生命表面材料类型的影响。
与手动消毒相比，最新一代的移动 R2S 系统是一种更可靠的消毒程序。
