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首页> 外文期刊>International Journal of Infection Control >Combination of two methods for Legionella disinfection of water systems (cooling towers and potable water) in a Spanish hospital
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Combination of two methods for Legionella disinfection of water systems (cooling towers and potable water) in a Spanish hospital

机译：西班牙医院的两种军团菌水系统消毒方法（冷却塔和饮用水）的组合

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摘要

This field study assesses the effectiveness of the installation of the Pastormaster system in potable water systems and a photo-catalyst in the cooling system as strategy for Legionella control in a Spanish hospital. Monthly, water samples were collected from taps in the Haematological Unit and the hospital cooling tower from 30-March-2005 to 31-December-2010. In the pre-installation period, all Legionella isolates from taps belonged to serogroups 2-14, and the isolation rate was 100% reduced after the Pastormaster system installation. In the cooling system, L. pneumophila serogroup 1 accounted for 80.0% of all Legionella isolates in the pre-installation period. After the photo-catalyst installation, isolation of L. pneumophila serogroup 1 was 57.2% reduced, but there was a significant increase in the isolation of Legionella isolates belonging to other serogroups or species. This study shows that the strategy implemented was highly effective in reducing serogroup 2-14 Legionella isolation from taps, thus potentially preventing nosocomial legionellosis, but not in reducing overall Legionella isolation in cooling towers.
机译：这项现场研究评估了Pastormaster系统在饮用水系统中的安装以及冷却系统中的光催化剂作为西班牙医院军团菌控制策略的有效性。从2005年3月30日至2010年12月31日，每月从血液科和医院冷却塔的水龙头收集水样。在预安装期间，所有来自水龙头的军团菌分离株均属于2-14血清群，安装Pastormaster系统后，分离率降低了100％。在冷却系统中，在安装前期，嗜肺乳杆菌血清群1占所有军团菌分离株的80.0％。安装光催化剂后，嗜肺乳杆菌血清群1的分离减少了57.2％，但属于其他血清群或物种的军团菌分离株的分离显着增加。这项研究表明，所实施的策略在减少水龙头中2-14军团菌血清分离方面非常有效，因此有可能预防医院内的军团菌病，但在降低冷却塔中总体军团菌分离方面没有效果。

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