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         Overall, this study explores the feasibility of using the UV Angel lamp for reducing bacterial burden on one of the most frequently encountered surfaces in a patient's room, the computer keyboard. In addition, this novel device emits a relatively low dose of UVC radiation to the target area, and the disinfection cycle can proceed many times during the day without disruptions to patient care from interruptions to normal staff workflow.

Result: Comparison of pre- and post-UV decontamination median CFU (numerous bacteria linked to health care–associated infections) revealed a >99% reduction in bacteria.

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      This study highlights the merits of UVC-LED to effectively inactivate TRB in a prompt, energy-efficient and resistance-reducing way, while future study on TRB regrowth and resistance resilience is needed.

Result: The results showed that UVC-LEDs can inactivate TRB up to 5.7-log and inhibit TRG expression, especially at 268 nm. Contrary to non-resistant bacteria, the regrowth ratio of TRB was remarkably high at 24 h since the end of the irradiation, nevertheless the number of the regrown bacteria in the irradiated water was still less than that in the non-irradiated water.

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This study explores the effects of UVC light on various high-touch surfaces in hospitals.


Result: The study demonstrated that the Pulsed-UVC device, associated with SOP, significantly reduced microorganisms from common high-touch surfaces, as only 18% (15/85) of samples samples after treatment compared to 63% using standard treatments