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Article

No-Touch Automated Disinfection System for Decontamination of Surfaces in Hospitals

Department of Social Medicine and Public Health, Medical University of Warsaw, Oczki 3, 02-007 Warsaw, Poland
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Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(14), 5131; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17145131
Received: 18 May 2020 / Revised: 13 July 2020 / Accepted: 14 July 2020 / Published: 16 July 2020
(This article belongs to the Special Issue Hospital Outdoor and Indoor Environmental Impact: Control Measures)
Background: Hospital-acquired infections (HAIs) remain a common problem, which suggests that standard decontamination procedures are insufficient. Thus, new methods of decontamination are needed in hospitals. Methods: We assessed the effectiveness of a no-touch automated disinfection (NTD) system in the decontamination of 50 surfaces in 10 hospital rooms. Contamination of surfaces was assessed with a microbiological assay and an ATP bioluminescence assay. Unacceptable contamination was defined as > 100 colony forming units/100 cm2 in the microbiological assay, and as ≥ 250 relative light units in the ATP assay. Results: When measured with the microbiological assay, 11 of 50 surfaces had unacceptable contamination before NTD, and none of the surfaces had unacceptable contamination after NTD (p < 0.001). On the ATP bioluminescence assay, NTD decreased the number of surfaces with unacceptable contamination from 28 to 13, but this effect was non-significant (p = 0.176). On the microbiological assay taken before NTD, the greatest contamination exceeded the acceptable level by more than 11-fold (lamp holder, 1150 CFU/100 cm2). On the ATP bioluminescence assay taken before NTD, the greatest contamination exceeded the acceptable level by more than 43-fold (Ambu bag, 10,874 RLU). Conclusion: NTD effectively reduced microbiological contamination in all hospital rooms. However, when measured with the ATP bioluminescence assay, the reduction of contamination was not significant. View Full-Text
Keywords: no-touch automated disinfection; hospital-acquired infections; peroxone; ATP bioluminescence assay; microbiological assay no-touch automated disinfection; hospital-acquired infections; peroxone; ATP bioluminescence assay; microbiological assay
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MDPI and ACS Style

Tarka, P.; Nitsch-Osuch, A. No-Touch Automated Disinfection System for Decontamination of Surfaces in Hospitals. Int. J. Environ. Res. Public Health 2020, 17, 5131. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17145131

AMA Style

Tarka P, Nitsch-Osuch A. No-Touch Automated Disinfection System for Decontamination of Surfaces in Hospitals. International Journal of Environmental Research and Public Health. 2020; 17(14):5131. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17145131

Chicago/Turabian Style

Tarka, Patryk, and Aneta Nitsch-Osuch. 2020. "No-Touch Automated Disinfection System for Decontamination of Surfaces in Hospitals" International Journal of Environmental Research and Public Health 17, no. 14: 5131. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17145131

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