Factors Influencing Legionella Contamination of Domestic Household Showers

Pathogens
Deanna Hayes-PhillipsHarriet Whiley

Abstract

Legionnaires' disease is a potentially fatal pneumonia like infection caused by inhalation or aspiration of water particles contaminated with pathogenic Legionella spp. Household showers have been identified as a potential source of sporadic, community-acquired Legionnaires' disease. This study used qPCR to enumerate Legionella spp. and Legionella pneumophila in water samples collected from domestic showers across metropolitan Adelaide, South Australia. A survey was used to identify risk factors associated with contamination and to examine awareness of Legionella control in the home. The hot water temperature was also measured. A total of 74.6% (50/68) and 64.2% (43/68) showers were positive for Legionella spp. and L. pneumophila, respectively. Statistically significant associations were found between Legionella spp. concentration and maximum hot water temperature (p = 0.000), frequency of shower use (p = 0.000) and age of house (p = 0.037). Lower Legionella spp. concentrations were associated with higher hot water temperatures, showers used at least every week and houses less than 5 years old. However, examination of risk factors associated with L. pneumophila found that there were no statistically significant associations (p ...Continue Reading

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Citations

Oct 1, 2020·International Journal of Environmental Research and Public Health·Michele TotaroAngelo Baggiani
Nov 5, 2020·PloS One·Luna GirolaminiSandra Cristino
Jan 16, 2020·Water Research·William J RhoadsMarc A Edwards
Jul 3, 2021·International Journal of Environmental Research and Public Health·Maria Luisa RicciMaria Scaturro

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Methods Mentioned

BETA
PCR

Software Mentioned

SPSS

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