Abstract：
OBJECTIVE: The occurrence of bacteria of the genus Legionella sp. in hot water supply systems in buildings is a real threat to human health, especially for patients in hospitals and residents of nursing homes. The aim of the study was determination of the degree of colonization of hot water systems in hospitals and nursing homes in the Świętokrzyskie Province in south-east Poland.
METHODS: Between 2014 - 2018, samples were collected from hot water systems in 30 hospitals and 32 nursing homes in order to determine the degree of contamination. 631 samples collected of the bacteria Legionella sp were analyzed.
RESULTS: Excessive contamination (≥ 100CFU/100 ml) with the bacteria Legionella sp. was detected in 12.12% (n=71) of samples. Contamination was significantly more frequently detected in samples from hot water systems in nursing homes, compared to hospitals (16.48% vs. 10.37%). Above-standard contamination of hot water systems with Legionella sp. bacteria occurred in 34.43% of the facilities, and was more frequent in hospitals (41.38%) than in the nursing homes (28.13%). In 21.3% of the facilities, contamination was detected many times during the study period.
CONCLUSIONS: Excessive contamination of hot water systems with Legionella sp. bacteria in the examined facilities was a common phenomenon. The presence of the pathogen in the installations of these facilities may constitute a considerable health hazard for patients and residents.
METHODS: Between 2014 - 2018, samples were collected from hot water systems in 30 hospitals and 32 nursing homes in order to determine the degree of contamination. 631 samples collected of the bacteria Legionella sp were analyzed.
RESULTS: Excessive contamination (≥ 100CFU/100 ml) with the bacteria Legionella sp. was detected in 12.12% (n=71) of samples. Contamination was significantly more frequently detected in samples from hot water systems in nursing homes, compared to hospitals (16.48% vs. 10.37%). Above-standard contamination of hot water systems with Legionella sp. bacteria occurred in 34.43% of the facilities, and was more frequent in hospitals (41.38%) than in the nursing homes (28.13%). In 21.3% of the facilities, contamination was detected many times during the study period.
CONCLUSIONS: Excessive contamination of hot water systems with Legionella sp. bacteria in the examined facilities was a common phenomenon. The presence of the pathogen in the installations of these facilities may constitute a considerable health hazard for patients and residents.
摘要：
目的：军团菌属细菌的发生。在建筑物的热水供应系统中是对人类健康的真正威胁，特别是医院的病人和养老院的居民。该研究的目的是确定波兰东南部的wiçtokrzyskie省的医院和疗养院中热水系统的定殖程度。
方法：在2014年至2018年之间，从30家医院和32家疗养院的热水系统中收集了样本，以确定污染程度。分析了所收集的细菌军团菌的631个样品。
结果：细菌军团菌的过度污染（≥100CFU/100ml）。在12.12%(n=71)的样品中检测到。在疗养院热水系统的样本中检测到污染的频率明显更高，与医院相比(16.48%与10.37%）。军团菌对热水系统的污染超标。34.43%的设施出现细菌，医院（41.38％）的频率高于疗养院（28.13％）。在21.3%的设施中，在研究期间多次检测到污染。
结论：军团菌对热水系统的过度污染。被检查设施中的细菌是一种常见现象。在这些设施的设施中存在病原体可能对患者和居民构成相当大的健康危害。
方法：在2014年至2018年之间，从30家医院和32家疗养院的热水系统中收集了样本，以确定污染程度。分析了所收集的细菌军团菌的631个样品。
结果：细菌军团菌的过度污染（≥100CFU/100ml）。在12.12%(n=71)的样品中检测到。在疗养院热水系统的样本中检测到污染的频率明显更高，与医院相比(16.48%与10.37%）。军团菌对热水系统的污染超标。34.43%的设施出现细菌，医院（41.38％）的频率高于疗养院（28.13％）。在21.3%的设施中，在研究期间多次检测到污染。
结论：军团菌对热水系统的过度污染。被检查设施中的细菌是一种常见现象。在这些设施的设施中存在病原体可能对患者和居民构成相当大的健康危害。
