Department of Public Health Sciences, University of Modena and Reggio Emilia, Italy.
Am J Infect Control. 2012 Apr;40(3):279-81. doi: 10.1016/j.ajic.2011.03.008. Epub 2011 Jul 8.
We report the results of 1-year application of monochloramine to control Legionella pneumophila contamination in a hospital hot water distribution system.
In the main building of the hospital, a device continuously distributing monochloramine was installed. Legionella pneumophila and Pseudomonas spp contamination was followed in comparison with 2 other water networks in the same building using chlorine dioxide.
Monochloramine significantly reduced the number of contaminated sites compared with baseline (from 97.0% to 13.3%, respectively), chlorine dioxide device I (from 100% to 56.7%, respectively), and device II (from 100% to 60.8%, respectively). No positive sample exceeded 10(4) colony-forming units/L versus 59.4% at baseline.
Monochloramine could represent a good alternative to chlorine dioxide in controlling legionellae contamination in public and private buildings.
我们报告了 1 年来应用单氯胺控制医院热水分配系统中嗜肺军团菌污染的结果。
在医院主楼，安装了连续分配单氯胺的设备。与使用二氧化氯的同一建筑中的另外 2 个水网络相比，监测了嗜肺军团菌和假单胞菌的污染情况。
与基线（分别从 97.0%降至 13.3%）、二氧化氯设备 I（从 100%降至 56.7%）和设备 II（从 100%降至 60.8%）相比，单氯胺显著减少了污染部位的数量。没有阳性样本超过 10(4)cfu/L，而基线为 59.4%。
单氯胺可能是控制公共和私人建筑中军团菌污染的二氧化氯的良好替代品。
