嗜肺军团菌在未灭菌自来水中的繁殖。
Multiplication of Legionella pneumophila in unsterilized tap water.
作者信息
Yee R B, Wadowsky R M
出版信息
Appl Environ Microbiol. 1982 Jun;43(6):1330-4. doi: 10.1128/aem.43.6.1330-1334.1982.
Abstract
Naturally occurring Legionella pneumophila, an environmental isolate which had not been grown on artificial medium, was tested for the ability to multiply in tap water. A showerhead containing L. pneumophila and non-Legionellaceae bacteria was immersed in nonsterile tap water supplying this fixture. Also L. pneumophila and non-Legionellaceae bacteria were sedimented from tap water from a surgical intensive care unit. This bacterial suspension was inoculated into tap water from our laboratory. The legionellae in both suspensions multiplied in the tap water at 32, 37, and 42 degrees C. The non-Legionellaceae bacteria multiplied at 25, 32, and 37 degrees C. A water sample which was collected from the bottom of a hot water tank was found to contain L. pneumophila and non-Legionellaceae bacteria. These legionellae also multiplied when the water sample was incubated at 37 degrees C. These results indicate that L. pneumophila may multiply in warm water environments such as hot water plumbing fixtures, hot water tanks, and cooling towers.
摘要
对一种从未在人工培养基上培养过的环境分离株——天然存在的嗜肺军团菌进行了在自来水中繁殖能力的测试。将含有嗜肺军团菌和非军团菌科细菌的淋浴喷头浸入为该装置供水的非无菌自来水中。此外，从外科重症监护病房的自来水中沉淀出嗜肺军团菌和非军团菌科细菌。将这种细菌悬液接种到我们实验室的自来水中。两种悬液中的军团菌在32、37和42摄氏度的自来水中均能繁殖。非军团菌科细菌在25、32和37摄氏度下繁殖。从热水箱底部采集的水样中发现含有嗜肺军团菌和非军团菌科细菌。当水样在37摄氏度下培养时，这些军团菌也能繁殖。这些结果表明，嗜肺军团菌可能在热水管道装置、热水箱和冷却塔等温水环境中繁殖。
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本文引用的文献
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Isolation of Legionella pneumophila from hospital shower heads.从医院淋浴喷头中分离出嗜肺军团菌。
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