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Anti-microbial effect of filtered 222nm excimer lamps in a hospital waiting area
medRxiv - Infectious Diseases Pub Date : 2021-09-10 , DOI: 10.1101/2021.09.03.21263096
Christian Kanstrup Holm , Jacob Thyrsted , Soeren Helbo Skaarup , Andreas F. Hvass , Pernille Hauschildt , Sara Moeslund Joensen , Stine Yde Nielsen , Elisabeth Bendstrup

Background Hospital aquired infections is a considerable challenge for vulnerable patients. Ultraviolet light based on the excitation of mercury emit light at 254nm and has well established antimicrobial effects but the use hereof in populated areas is hindered by the carcinogenic properties of 254nm. This is in contrast to the recently developed excimer lamps based on krypton chloride (KrCl). These lamps emit light with a peak intensity at a wavelength of 222nm and have recently been demonstrated to have broad bactericidal and viricidal effects including efficient inactivation of SARS-CoV2. It is, however, unclear how efficiently 222nm lamps perform in a real-life setting such as a hospital waiting area. In this study we aimed to assess the antimicrobial efficacy of filtered 222nm excimer lamps in a real-world setting at an out-patient pulmonology clinic.

中文翻译:

经过滤的222nm准分子灯在医院候诊区的抗菌效果

背景医院获得性感染对弱势患者来说是一个相当大的挑战。基于汞激发的紫外线发出 254nm 的光并具有良好的抗菌作用,但其在人口稠密地区的使用受到 254nm 致癌特性的阻碍。这与最近开发的基于氯化氪 (KrCl) 的准分子灯形成对比。这些灯在 222nm 波长处发出峰值强度的光,最近已被证明具有广泛的杀菌和杀病毒作用,包括有效灭活 SARS-CoV2。然而,目前尚不清楚 222nm 灯在医院等候区等现实环境中的效率如何。在本研究中,我们旨在评估经过滤的 222nm 准分子灯在门诊肺病诊所的真实环境中的抗菌功效。
更新日期:2021-09-13
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