PointSource Technologies正在开发一种新的流式检测和计数方法，该方法显示出作为隐孢子虫和贾第虫在线、连续和实时系统的强大潜力。PointSource采用了一种称为多角度光散射（MALS）的技术来解决饮用水水质监测问题。在用低浊度水进行的初步实验室试验中，发现隐孢子虫、贾第虫和七种不同类型藻类的光散射模式足够独特，足以区分病原体和背景。隐孢子虫和贾第虫的识别率分别为60%和75%，置信度超过90%。假阳性率较低，分别约为1%和3.5%。包括12个参考文献、表格和图表。

PointSource Technologies is developing a new flow-through detection and enumerationmethod that shows strong potential for use as an on-line, continuous, and real-time system for Cryptosporidium and Giardia. PointSource has adapted a technique called multi-angle light scattering (MALS) to the problem of drinking water qualitymonitoring. In initial laboratory tests performed with low turbidity water, it was found that the light scattering patterns of Cryptosporidium, Giardia, and a background of seven different types of algae were sufficiently unique to discriminate between the pathogens and the background. The identification rates were approximately 60% for Cryptosporidium and 75% for Giardia, with confidence levels exceeding 90%. False positive rates were low, around 1% and 3.5%, respectively. Includes 12 references, tables, figures.