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and Rajul V. Randive1
Hospital-associated infections (HAIs) are a major burden in healthcare systems. In this study, UVC LEDs emitting radiation from 260 to 270 nm were evaluated for effectiveness in reducing methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus faecium and Acinetobacter baumannii . The array has four WD LEDs, each with 70 mW placed at 7 cm from test organisms. With 11.76 mJ cm−2, the study obtained 99.99% reduction (log10 reduction factor of 4) against MRSA and VRE. For A. baumannii , 9 mJ cm−2 obtained 99.999% reduction (log10 reduction factor of 5). These results present scientific evidence on how effective UVC LEDs can be used in the fight against HAIs.
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