退伍军人病是一种由病毒引起的肺炎 军团菌属淡水细菌。以前的 研究表明，一氯胺消毒 市政供水与风险降低有关 军团病在医疗环境中传播。 作者进行了为期两年的前瞻性环境研究 研究以确定是否从 氯气制一氯胺用于水消毒 将减少军团菌在热水中的定植 系统。研究结果显示，这一比例显著降低。 军团菌占据了60%的热水系统 一氯胺转化前与转化后的4%相比 转变这些发现表明一氯胺 在饮用水中，可以更好地控制军团菌 建筑管道系统的增长超过了氯。 虽然军团病的控制不太可能 是水务公司决定转换的一个主要因素 一氯胺残留消毒，如果是水 供应商转而使用一氯胺来降低浓度 消毒副产物的控制 饮用水系统中军团菌的生长可能是一个重要原因 额外的健康福利。包括37个参考文献、表格和图表。

Legionnaires' disease is a type of pneumonia caused by freshwater bacteria of the genus Legionella. Previous studies have shown that monochloramine disinfection of municipal water supplies is associated with decreased risk of Legionnaires' disease transmitted in healthcare settings. The authors performed a two-year, prospective environmental study to determine whether converting from chlorine to monochloramine for water disinfection would decrease Legionella colonization of hot water systems. Results of the study showed a significant reduction. Legionella colonized 60% of the hot water systems before monochloramine conversion versus 4% after conversion. These findings suggest that monochloramine in drinking water provides better control of Legionella growth in building plumbing systems than does chlorine. Although control of Legionnaires' disease is unlikely to be a major factor in a water utility's decision to convert to monochloramine for residual disinfection, if water suppliers convert to monochloramine to reduce concentrations of disinfection byproducts, control of the growth of Legionella in potable water systems may be an additional health benefit. Includes 37 references, tables, figure.