Surfacide has been documented to be effective against the MERS-CoV virus. Check it out in ICHE.
Efficacy of an Automated Multiple Emitter Whole-Room Ultraviolet-C Disinfection System Against Coronaviruses MHV and MERS-CoV
The Impact of Ultraviolet (UV) Disinfection System Coupled with Evidence-based Interventions on the Incidence of Hospital Onset Clostridium Difficile (HO-C-Diff).
Heather Bernard RN, BS, CIC, Director of Infection Prevention, Mohawk Valley Health System;
Jordan Little, Director of Hospitality Services, Mohawk Valley Health System
Faxton St. Lukes reduces C. diff infection rates by 41%
BACKGROUND: During the year 2012, the organization had the second highest incidence rate of HO-C-Diff in New York State. Best practices were in place for prevention of C-Diff including hand hygiene, contact precautions, hospital-wide disposable thermometer use, prolonged isolation, and bleach cleaning. The facility invested in a UV disinfection system in June 2013 to be used as an addition to the bundle of C-Diff prevention measures.
METHODS: A cross sectional design study was conducted that included all inpatients in a 370 licensed bed acute care hospital. The baseline period was 7/1/2012 e 6/30/2013 where all bundle components were in place to prevent C-Diff and a comparison timeframe of 7/1/2013 e 6/30/2014 where all bundle components were in place and the addition of a UV disinfection protocol to the terminal room cleaning process was implemented. An algorithm was used to guide the environmental services department in selecting priority rooms for UV usage. Rooms with C-Diff patients were a top priority at this time. HO-C-Diff cases were determined using the NHSN surveillance definition and overall rates were calculated by dividing the total number of cases by the total number of patient days multiplied by 10,000 patient days.
RESULTS: There was a 41% reduction in hospital onset C-Diff from the baseline to the intervention period.
CONCLUSIONS: This study found that adding a UV disinfection system to a bundle of best practice initiatives can reduce the incidence of HO-C-Diff.
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Ebola Efficacy
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Ohio State University Surfacide Efficacy Study
Ultraviolet Light Disinfection: The Energy, Time, and Distance to Eradicate Multi-Drug Resistant Organisms and Clostridium difficile
Christina Liscynesky, MD, Jessica Dyszel, PhD, Mathew A. Vross, MS, Edward Richter PhD, and Julie E. Mangino, MD. The Ohio State University Wexner Medical Center, Columbus, OH, Richter International, Inc., Columbus, OH.
Ohio State University Surfacide Efficacy Study - Read Full Report (PDF)Background: Hospital acquired infections (HAIs) continue to cause patient morbidity and mortality, and increase institutional financial burden. HAIs related to methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus (VRE), Acinetobacter sp., carbapenem-resistant Enterobacteriaceae (CRE), and Clostridium difficile (CD) are major infection control concerns. Terminal room cleaning with routine disinfection does not entirely eradicate these agents; ultraviolet (UV) light represents an advancement to the armamentarium to prevent HAIs in subsequent hospital room occupants.
Methods: Hospital acquired isolates, (MRSA, VRE, Acinetobacter, CRE and C. difficile) were chosen for study with the Surfacide UV light emitter. Four surfaces were autoclaved or sterilized by repeat 70% alcohol rinses prior to inoculation. Vegetative bacterial cultures and CD spores were inoculated onto: stainless steel, textured plastic, ceramic, and soft plastic. Each surface was prepared in triplicate with 100μl of culture suspended in 1% buffered peptone with negative controls. Surfaces were air dried overnight, placed at 4 and 8 feet away from the emitter; treated with UV light x 15 minutes.
Results: Investigation with CRE and Acinetobacter sp., is ongoing as inoculum size and desiccation (for CRE) and biofilm formation (for Acinetobacter) are playing a role. CD spores were subsequently retested by exposure to UV light at varying energies to determine a sporicidal dose at 1 foot. A logarithmic reduction of 2.31 was achieved with 378mJ. A 3.6 logarithmic reduction occurred at 1419 mJ and 2534 mJ; equivalent to a maximum reduction possible as viable spores were reduced below the level of detection.
Conclusion: This UV light emitter was shown to be efficacious against vegetative bacteria such as MRSA and VRE and C. difficile spores in a phase 1 trial. Our data is among the first to highlight the amount of UV energy necessary to eradicate C. difficile spores.
