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Impact of Plastic-Wrap Properties and Cleaning Intervals on the Disinfection of Elevator Buttons

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  • Shin-Huei Kuo

    (Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, No. 68, Jhonghua 3rd Road, Kaohsiung 80145, Taiwan
    Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan)

  • Tzu-Yin Liu

    (Infection Control Office, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, No. 68, Jhonghua 3rd Road, Kaohsiung 80145, Taiwan)

  • Tun-Chieh Chen

    (Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, No. 68, Jhonghua 3rd Road, Kaohsiung 80145, Taiwan
    Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
    Infection Control Office, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, No. 68, Jhonghua 3rd Road, Kaohsiung 80145, Taiwan
    School of Medicine, College of Medicine, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan)

  • Chih-Jen Yang

    (School of Medicine, College of Medicine, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
    Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan)

  • Yen-Hsu Chen

    (Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
    School of Medicine, College of Medicine, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
    School of Medicine, College of Medicine, National Sun Yat-sen University, No. 70, Lien-Hai Road, Kaohsiung 80424, Taiwan)

Abstract

Fomite transmission is a possible route by which different pathogens spread within facilities. In hospital settings, elevator buttons are widely observed to be covered with various types of plastic wraps; however, limited information is available concerning the impact of different plastic materials on cleaning. Our study aimed to identify which plastic material is suitable for the coverage of elevator buttons and the optimal intervals for their cleaning. We tested six plastic covers, including polyethylene (PE), polymethylpentene (PMP), polyvinyl chloride (PVD), and polyvinylidene chloride (PVDC) plastic wraps; a thermoplastic polyurethane (TPU) keyboard cover; and a polyethylene terephthalate-ethylene vinyl acetate (PET-EVA) laminating film, which are plastic films. The bioburden on the elevator buttons at different time intervals was measured using an adenosine triphosphate (ATP) bioluminescence assay. Our results show that wraps made of PVDC had superior durability compared with those of PMP, PVC, and PVDC, in addition to the lowest detectable ATP levels among the six tested materials. Regarding different button locations, the highest ATP values were found in door-close buttons followed by door-open, and first-floor buttons after one- and three-hour intervals ( p = 0.024 and p < 0.001, respectively). After routine disinfection, the ATP levels of buttons rapidly increased after touching and became more prominent after three hours ( p < 0.05). Our results indicate that PVDC plastic wraps have adequate durability and the lowest residual bioburden when applied as covers for elevator buttons. Door-close and -open buttons were the most frequently touched sites, requiring more accurate and precise disinfection; therefore, cleaning intervals of no longer than three hours may be warranted.

Suggested Citation

  • Shin-Huei Kuo & Tzu-Yin Liu & Tun-Chieh Chen & Chih-Jen Yang & Yen-Hsu Chen, 2023. "Impact of Plastic-Wrap Properties and Cleaning Intervals on the Disinfection of Elevator Buttons," IJERPH, MDPI, vol. 20(2), pages 1-9, January.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:2:p:1649-:d:1037923
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    References listed on IDEAS

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    1. Agata Jabłońska-Trypuć & Marcin Makuła & Maria Włodarczyk-Makuła & Elżbieta Wołejko & Urszula Wydro & Lluis Serra-Majem & Józefa Wiater, 2022. "Inanimate Surfaces as a Source of Hospital Infections Caused by Fungi, Bacteria and Viruses with Particular Emphasis on SARS-CoV-2," IJERPH, MDPI, vol. 19(13), pages 1-22, July.
    2. Jana Koscova & Zuzana Hurnikova & Juraj Pistl, 2018. "Degree of Bacterial Contamination of Mobile Phone and Computer Keyboard Surfaces and Efficacy of Disinfection with Chlorhexidine Digluconate and Triclosan to Its Reduction," IJERPH, MDPI, vol. 15(10), pages 1-9, October.
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