A splash-reducing clinical handwash basin reduces droplet-mediated dispersal from a sink contaminated with Gram-negative bacteria in a laboratory model system

Paz Aranega Bou; C. Cornbill; Neville Verlander; Ginny Moore

doi:10.1016/j.jhin.2021.04.017

A splash-reducing clinical handwash basin reduces droplet-mediated dispersal from a sink contaminated with Gram-negative bacteria in a laboratory model system

Paz Aranega Bou^*, C. Cornbill, Neville Verlander, Ginny Moore

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Infection prevention strategies need to be identified and evaluated to reduce the risk associated with contaminated hospital sinks. This study used settle plates to compare the dispersal of Gram-negative bacteria from a conventional, rear-draining clinical handwash basin (CHWB) and a ‘splash-reducing’ CHWB with and/or without impaired drainage. Two scenarios were assessed: dispersal from a contaminated basin and dispersal from a contaminated drain. The associated tap was operated for 1 min and, for all contamination scenarios, the ‘splash-reducing’ CHWB had significantly lower odds of spreading contamination than the conventional CHWB.

Original language	English
Pages (from-to)	171-174
Number of pages	4
Journal	Journal of Hospital Infection
Volume	114
Early online date	22 Apr 2021
DOIs	https://doi.org/10.1016/j.jhin.2021.04.017
Publication status	Published - Aug 2021

Bibliographical note

Funding Information: The research was supported by the National Institute for Health Research ( NIHR ) Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance ( NIHR200915 ) at University of Oxford ( NIHR200915 ) in partnership with Public Health England (PHE). Armitage Shanks (UK) provided the Contour 21+ washbasin free of charge. However, Armitage Shanks did not contribute to the study design, research outcome, or the writing or editing of the manuscript.

This work was supported by Public Health England (PHE). The views expressed in this publication are those of the authors and not necessarily those of PHE or any other government agency.

Open Access: No Open Access licence

Publisher Copyright: Crown Copyright © 2021 Published by Elsevier Ltd on behalf of The Healthcare Infection Society. All rights reserved.

Citation: P. Aranega-Bou, C. Cornbill, N.Q. Verlander, G. Moore, A splash-reducing clinical handwash basin reduces droplet-mediated dispersal from a sink contaminated with Gram-negative bacteria in a laboratory model system,
Journal of Hospital Infection, Volume 114, 2021, Pages 171-174, ISSN 0195-6701.

DOI: https://doi.org/10.1016/j.jhin.2021.04.017.

Keywords

CHWB
Dispersal
Engineering interventions
Gram-negative bacteria
Infection prevention
Water safety

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jhin.2021.04.017

Cite this

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title = "A splash-reducing clinical handwash basin reduces droplet-mediated dispersal from a sink contaminated with Gram-negative bacteria in a laboratory model system",

abstract = "Infection prevention strategies need to be identified and evaluated to reduce the risk associated with contaminated hospital sinks. This study used settle plates to compare the dispersal of Gram-negative bacteria from a conventional, rear-draining clinical handwash basin (CHWB) and a {\textquoteleft}splash-reducing{\textquoteright} CHWB with and/or without impaired drainage. Two scenarios were assessed: dispersal from a contaminated basin and dispersal from a contaminated drain. The associated tap was operated for 1 min and, for all contamination scenarios, the {\textquoteleft}splash-reducing{\textquoteright} CHWB had significantly lower odds of spreading contamination than the conventional CHWB.",

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note = "Funding Information: The research was supported by the National Institute for Health Research ( NIHR ) Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance ( NIHR200915 ) at University of Oxford ( NIHR200915 ) in partnership with Public Health England (PHE). Armitage Shanks (UK) provided the Contour 21+ washbasin free of charge. However, Armitage Shanks did not contribute to the study design, research outcome, or the writing or editing of the manuscript. This work was supported by Public Health England (PHE). The views expressed in this publication are those of the authors and not necessarily those of PHE or any other government agency. Open Access: No Open Access licence Publisher Copyright: Crown Copyright {\textcopyright} 2021 Published by Elsevier Ltd on behalf of The Healthcare Infection Society. All rights reserved. Citation: P. Aranega-Bou, C. Cornbill, N.Q. Verlander, G. Moore, A splash-reducing clinical handwash basin reduces droplet-mediated dispersal from a sink contaminated with Gram-negative bacteria in a laboratory model system, Journal of Hospital Infection, Volume 114, 2021, Pages 171-174, ISSN 0195-6701. DOI: https://doi.org/10.1016/j.jhin.2021.04.017.",

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AB - Infection prevention strategies need to be identified and evaluated to reduce the risk associated with contaminated hospital sinks. This study used settle plates to compare the dispersal of Gram-negative bacteria from a conventional, rear-draining clinical handwash basin (CHWB) and a ‘splash-reducing’ CHWB with and/or without impaired drainage. Two scenarios were assessed: dispersal from a contaminated basin and dispersal from a contaminated drain. The associated tap was operated for 1 min and, for all contamination scenarios, the ‘splash-reducing’ CHWB had significantly lower odds of spreading contamination than the conventional CHWB.

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A splash-reducing clinical handwash basin reduces droplet-mediated dispersal from a sink contaminated with Gram-negative bacteria in a laboratory model system

Abstract

Bibliographical note

Keywords

UN SDGs

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