分两个阶段对饮用水系统和家庭管道配件中的嗜肺军团菌进行了调查。在第一阶段，从17个社区供水系统的家庭中的冷热厨房水槽水龙头收集了68个嗜肺链球菌分析水样。没有从这些样本中分离到嗜肺L.菌。然而，相对较小的样本量、取样程序中的许多变量以及所采用的实验室检测技术的潜在局限性可能是导致显著回收失败的原因。在第1A阶段，用无菌拭子对厨房水槽水龙头和通气器、淋浴头和供水管进行取样，并从每户家庭的热水器排水管中收集热水样本。共从四个社区供水系统的家庭中采集了184个样本。此外，从一个有浅水井的家中采集了两个样本。 在这一阶段，从两个热水器冲洗样本中回收了嗜肺L.菌，一个来自社区供水系统的家庭，另一个来自浅水井的家庭。两个阳性样本都是从非循环电热水器中采集的。这一发现，再加上家庭配水管道缺乏恢复，可能表明嗜肺L.菌可能通过饮用水系统以极低的水平从天然水源输送到家庭热水器，其中的生物体可能会增加到可检测的水平。包括56个参考文献、表格、图表。

An investigation of Legionella pneumophila in drinking water systems and home plumbing appurtenances was conducted in two phases. In phase 1, 68 water samples for L.pneumophila analysis were collected from hot and cold kitchen sink faucets in homes on 17 community water systems. No L. pneumophila organisms were isolated from any of these samples. However, the relatively small sample size, the many variables in the sampling procedure, and potential limitations of the laboratory detection techniques employed may have contributed to the failure of significant recovery. In phase 1A, the kitchen sink faucets and aerators, showerheads, and supply pipes were sampled with sterile swabs, and samples of hot water were collected from the drains of water heaters in each home. A total of 184 samples was collected from homes on four community water systems. In addition, two samples were collected from a home with a shallow dug well. During this phase, L. pneumophila organisms were recovered from two water heater flush samples-one from a home on a community water system and the other from the home with the shallow well. Both of the positive samples were taken from electric, nonrecirculating water heaters. This finding, together with the lack of recovery in the home water distribution plumbing, could indicate that L. pneumophila may be transported from natural aquatic sources via drinking water systems in very low levels to home water heaters, in which the organisms may increase to detectable levels. Includes 56 references, tables, figures.