Assessing the impact of handwashing soaps on the population dynamics of carbapenemase-producing and non-carbapenemase-producing Enterobacterales

Carbapenemase-producing bacteria have persistent environmental reservoirs in handwashing sinks. This study assessed the impact of handwashing soaps on the population dynamics of carbapenemase-producing Enterobacterales (CPE) and non-CPE. A number of isolates were grown in minimal media with or witho...

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Bibliographic Details
Published in:	The Journal of hospital infection Vol. 105; no. 4; pp. 678 - 681
Main Authors:	Boyle, M.A., Kearney, A.D., Sawant, B., Humphreys, H.
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01-08-2020
Subjects:	CPE Infection control Outbreak management Sinks Soap CPE Outbreak management Sinks Soap Infection control
Online Access:	Get full text
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Summary:	Carbapenemase-producing bacteria have persistent environmental reservoirs in handwashing sinks. This study assessed the impact of handwashing soaps on the population dynamics of carbapenemase-producing Enterobacterales (CPE) and non-CPE. A number of isolates were grown in minimal media with or without two hand soaps marketed for use in health care. Soap A led to increased growth of all isolates except for Escherichia coli. Soap B did not lead to increased growth. The main difference between the formulations was that Soap B contained DMDM hydantoin, a preservative agent and sensitizer. These results show that environmental persistence of CPE may be sustained by common handwashing practices with soap, but further research is required.
ISSN:	0195-6701 1532-2939
DOI:	10.1016/j.jhin.2020.04.037