暴露于水中肠道病原体的特征需要有关病原体发生和浓度的信息。为了收集这些信息，有必要采用快速、可靠和经济的方法检测污染水中的低水平病原体。原生动物、细菌和病毒的检测方法依赖于通过过滤从大量水中浓缩它们通常较低的数量。这些微生物特性的差异要求使用单独的浓缩技术。本文描述了使用廉价、一次性、紧凑、轻质的中空纤维超滤器为微小隐孢子虫卵囊以及病毒和细菌开发统一的一级浓缩系统。 该系统测试了从50L体积的成品自来水和10L体积的原水中回收种子隐孢子虫卵囊、大肠杆菌和大肠杆菌噬菌体MS2的效率。

Characterization of exposure to enteric pathogens from water requires information on pathogen occurrence and concentrations. In order to collect this information, rapid, reliable and economic methods of detecting low levels of pathogens in contaminated water are necessary. The detection methods for protozoa, bacteria and viruses have relied on concentrating their typically low numbers from large volumes of water by filtration. Differences in the characteristics of these microbes have required the use of separate concentration techniques. This paper describes the development of a unified primary concentration system for Cryptosporidium parvum oocysts as well as viruses and bacteria using an inexpensive, disposable, compact, lightweight hollow fiber ultrafilter. The system was tested for recovery efficiency of seeded Cryptosporidium parvum oocysts, Escherichia coli and coliphage MS2 from 50L volumes of finished tap water and 10L volumes of raw source water.