globalchange  > 气候变化事实与影响
DOI: 10.1016/j.watres.2018.11.032
Scopus记录号: 2-s2.0-85056849439
论文题名:
Role of hot water temperature and water system use on Legionella control in a tertiary hospital: An 8-year longitudinal study
作者: Gavaldà L.; Garcia-Nuñez M.; Quero S.; Gutierrez-Milla C.; Sabrià M.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 460
结束页码: 466
语种: 英语
英文关键词: Control measures ; Hospital water network ; Legionella ; Outlets flushing ; Water temperature
Scopus关键词: Environmental management ; Multivariant analysis ; Risk assessment ; Temperature ; Water management ; Water supply ; Control measures ; Legionella ; Outlets flushing ; Water networks ; Water temperatures ; Hospitals ; hot water ; bacterium ; colonization ; flushing ; high temperature ; hospital sector ; multivariate analysis ; temperature effect ; water temperature ; Article ; bacterial colonization ; controlled study ; disease control ; environmental temperature ; infection risk ; Legionella ; Legionella pneumophila ; longitudinal study ; nonhuman ; priority journal ; serotype ; tertiary care center ; water supply ; water temperature ; Legionella
英文摘要: Although measures to minimize Legionella colonization in sanitary hot water installations are well established, there is little evidence of their long-term effectiveness in hospital buildings. During an 8-year period, hot water in a large hospital building was sampled monthly in areas with suitable dimensioning and recirculation and in areas with dead legs and low-use taps. In the former areas, the percentage of Legionella-negative samples was 83.2% when the temperature was ≥55%, 64.9% when between 50.1 °C and 54.0 °C, and 51.6% when ≤50 °C (p for trend <0.001). In the highest temperature group, no samples with ≥103 cfu/L were observed. In poorly designed areas, only 44.7% of samples were negative, and 28.9% presented ≥103 cfu/L although reaching 55 °C. In these areas, multivariate analysis showed that if hot water supplies were not used daily, the risk of Legionella colonization was greater than two-fold (odds ratio: 2.84; 95% confidence interval: 1.26–6.41), and the risk of finding Legionella concentrations ≥103 cfu/L was more than three-fold (odds ratio: 3.18; 95% confidence interval: 1.36–7.46), regardless the temperature. These findings indicate that the effectiveness of maintaining sanitary hot water at a minimum temperature of 55 °C is significantly better than that at 50 °C for the environmental control of Legionella but only in installations with suitable dimensioning and recirculation. In installations that do not meet these conditions, high temperatures alone result in insufficient control. © 2018 Elsevier Ltd
Citation statistics:
被引频次[WOS]:26   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122139
Appears in Collections:气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: Department of Preventive Medicine-Hospital Hygiene. Hospital Universitari de Bellvitge-IDIBELL, Feixa Llarga, s/n. 08907 L'Hospitalet de Llobregat, Barcelona, Spain; Infectious diseases Unit, Fundació Institut d'Investigació Germans Trias I Pujol, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, Barcelona, 08916, Spain; CIBER de Enfermedades Respiratorias, CIBERES, Av. de Monforte de Lemos, 3-5, Madrid, 28029, Spain; Department of Respiratory Medicine, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí, I3PT, Parc Taulí, 1, Sabadell, Barcelona 08208, Spain; Department of Medicine, Universitat Autònoma de Barcelona (UAB), Av. de Can Domènech, 737, Cerdanyola del Vallès, Barcelona 08193, Spain

Recommended Citation:
Gavaldà L.,Garcia-Nuñez M.,Quero S.,et al. Role of hot water temperature and water system use on Legionella control in a tertiary hospital: An 8-year longitudinal study[J]. Water Research,2019-01-01
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Gavaldà L.]'s Articles
[Garcia-Nuñez M.]'s Articles
[Quero S.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Gavaldà L.]'s Articles
[Garcia-Nuñez M.]'s Articles
[Quero S.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Gavaldà L.]‘s Articles
[Garcia-Nuñez M.]‘s Articles
[Quero S.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.