医院和社区饮用水中真菌的出现情况。

The occurrence of fungi in hospital and community potable waters.

作者信息

Arvanitidou M, Kanellou K, Constantinides T C, Katsouyannopoulos V

机构信息

Laboratory of Hygiene, Medical School, Aristotelian University of Thessaloniki, Greece. vayonaämed.auth.gr

出版信息

Lett Appl Microbiol. 1999 Aug;29(2):81-4. doi: 10.1046/j.1365-2672.1999.00583.x.

DOI:10.1046/j.1365-2672.1999.00583.x

PMID:10499294

Abstract

The prevalence of fungi was investigated in 126 potable water samples (84 hospital and 42 community samples), in parallel with the standard pollution indicator micro-organisms. Filamentous fungi were isolated from 104 of 126 (82.5%) samples and yeasts from 14 (11.1%), whereas their mean counts were 36.6 and 4.4, respectively. Fungi were isolated from 95.2% of community and 76.2% of hospital water samples, with the difference being statistically significant (P < 0.05), while yeasts were isolated from 9.5 and 11.9%, respectively. Prevailing genera were Penicillium spp., isolated from 64, Aspergillus spp., from 53, and Candida, from nine of the examined samples. Colony-forming units of yeasts were significantly correlated with those of total and faecal coliforms, whereas the counts of filamentous fungi were significantly correlated with total heterotrophic bacteria counts. These results suggest that tap water is a potential transmission route for fungi both in hospitals and the community in the examined region and may pose a health hazard mainly for the immunocompromised host.

摘要

对126份饮用水样本（84份医院样本和42份社区样本）中的真菌患病率进行了调查，同时检测了标准污染指示微生物。在126份样本中的104份（82.5%）中分离出丝状真菌，14份（11.1%）中分离出酵母，它们的平均计数分别为36.6和4.4。在95.2%的社区水样和76.2%的医院水样中分离出真菌，差异具有统计学意义（P<0.05），而酵母分别从9.5%和11.9%的水样中分离得到。优势菌属为青霉属，从64份样本中分离得到，曲霉属从53份样本中分离得到，念珠菌属从9份检测样本中分离得到。酵母的菌落形成单位与总大肠菌群和粪大肠菌群的菌落形成单位显著相关，而丝状真菌的计数与总异养细菌计数显著相关。这些结果表明，在所检测地区，自来水是医院和社区中真菌的潜在传播途径，可能主要对免疫功能低下的宿主构成健康危害。