Shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.

Drinking water distribution systems, including premise plumbing, contain a diverse microbiological community that may include opportunistic pathogens. On-site supplemental disinfection systems have been proposed as a control method for opportunistic pathogens in premise plumbing. The majority of on-...

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Autores principales:	Julianne L Baron, Amit Vikram, Scott Duda, Janet E Stout, Kyle Bibby
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5151becd37174e22a0722b7197794a64
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spelling	oai:doaj.org-article:5151becd37174e22a0722b7197794a642021-11-25T06:08:04ZShift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.1932-620310.1371/journal.pone.0102679https://doaj.org/article/5151becd37174e22a0722b7197794a642014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25033448/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Drinking water distribution systems, including premise plumbing, contain a diverse microbiological community that may include opportunistic pathogens. On-site supplemental disinfection systems have been proposed as a control method for opportunistic pathogens in premise plumbing. The majority of on-site disinfection systems to date have been installed in hospitals due to the high concentration of opportunistic pathogen susceptible occupants. The installation of on-site supplemental disinfection systems in hospitals allows for evaluation of the impact of on-site disinfection systems on drinking water system microbial ecology prior to widespread application. This study evaluated the impact of supplemental monochloramine on the microbial ecology of a hospital's hot water system. Samples were taken three months and immediately prior to monochloramine treatment and monthly for the first six months of treatment, and all samples were subjected to high throughput Illumina 16S rRNA region sequencing. The microbial community composition of monochloramine treated samples was dramatically different than the baseline months. There was an immediate shift towards decreased relative abundance of Betaproteobacteria, and increased relative abundance of Firmicutes, Alphaproteobacteria, Gammaproteobacteria, Cyanobacteria and Actinobacteria. Following treatment, microbial populations grouped by sampling location rather than sampling time. Over the course of treatment the relative abundance of certain genera containing opportunistic pathogens and genera containing denitrifying bacteria increased. The results demonstrate the driving influence of supplemental disinfection on premise plumbing microbial ecology and suggest the value of further investigation into the overall effects of premise plumbing disinfection strategies on microbial ecology and not solely specific target microorganisms.Julianne L BaronAmit VikramScott DudaJanet E StoutKyle BibbyPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 7, p e102679 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Julianne L Baron Amit Vikram Scott Duda Janet E Stout Kyle Bibby Shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.
description	Drinking water distribution systems, including premise plumbing, contain a diverse microbiological community that may include opportunistic pathogens. On-site supplemental disinfection systems have been proposed as a control method for opportunistic pathogens in premise plumbing. The majority of on-site disinfection systems to date have been installed in hospitals due to the high concentration of opportunistic pathogen susceptible occupants. The installation of on-site supplemental disinfection systems in hospitals allows for evaluation of the impact of on-site disinfection systems on drinking water system microbial ecology prior to widespread application. This study evaluated the impact of supplemental monochloramine on the microbial ecology of a hospital's hot water system. Samples were taken three months and immediately prior to monochloramine treatment and monthly for the first six months of treatment, and all samples were subjected to high throughput Illumina 16S rRNA region sequencing. The microbial community composition of monochloramine treated samples was dramatically different than the baseline months. There was an immediate shift towards decreased relative abundance of Betaproteobacteria, and increased relative abundance of Firmicutes, Alphaproteobacteria, Gammaproteobacteria, Cyanobacteria and Actinobacteria. Following treatment, microbial populations grouped by sampling location rather than sampling time. Over the course of treatment the relative abundance of certain genera containing opportunistic pathogens and genera containing denitrifying bacteria increased. The results demonstrate the driving influence of supplemental disinfection on premise plumbing microbial ecology and suggest the value of further investigation into the overall effects of premise plumbing disinfection strategies on microbial ecology and not solely specific target microorganisms.
format	article
author	Julianne L Baron Amit Vikram Scott Duda Janet E Stout Kyle Bibby
author_facet	Julianne L Baron Amit Vikram Scott Duda Janet E Stout Kyle Bibby
author_sort	Julianne L Baron
title	Shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.
title_short	Shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.
title_full	Shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.
title_fullStr	Shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.
title_full_unstemmed	Shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.
title_sort	shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/5151becd37174e22a0722b7197794a64
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Shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system.

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