Rate of Legionella pneumophila colonization in hospital hot water network after time flow taps installation

被引：22

作者：

Totaro, M. ^{[1
]}

Valentini, P. ^{[1
]}

Costa, A. L. ^{[1
]}

Giorgi, S. ^{[1
]}

Casini, B. ^{[1
]}

Baggiani, A. ^{[1
]}

机构：

[1] Univ Pisa, Dept Translat Res & New Technol Med & Surg, Via S Zeno 35-39, I-56127 Pisa, Italy

来源：

JOURNAL OF HOSPITAL INFECTION | 2018年 / 98卷 / 01期

关键词：

Legionella; Time flow taps; Hospital water network; Chlorine dioxide;

D O I：

10.1016/j.jhin.2017.08.021

中图分类号：

R1 [预防医学、卫生学];

学科分类号：

1004 ; 120402 ;

摘要：

In hospital water systems legionellae may be resistant to disinfectants in pipework, which is a problem particularly in areas where there is low flow or stagnation of water. We evaluated legionella colonization of a water network of an Italian hospital after time flow taps (TFTs) installation in proximity to dead legs. The water volume flushed was 64 L/day from May 2016, and 192 L/day from December 2016. Before TFTs installation, Legionella pneumophila sg2-14 was detected in all points (4 x 10(4) +/- 3.1 x 10(4) cfu/L). All sites remained positive (2.9 x 10(4) +/- 1.9 x 10(4) cfu/L) through November 2016. From December 2016 legionella persisted in one point only (2 x 10(2) to 6.8 x 10(3) cfu/L). TFTs with chemical disinfection may reduce legionella colonization associated with dead legs. (C) 2017 The Healthcare Infection Society. Published by Elsevier Ltd. All rights reserved.

引用

页码：60 / 63

页数：4

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