关于二氧化氯在天然水中灭活微小隐孢子虫的数据很少。本研究采用细胞培养和体外脱囊的方法，评估了隐孢子虫卵囊在三种不同的天然水（过滤后收集）和去离子蒸馏水中的失活动力学。此外，该研究还检测了易于测量的微生物指标（如枯草芽孢杆菌（需氧）孢子和产孢梭菌（厌氧）孢子）与微小隐孢子虫卵囊之间的关系。最后，对来自两个不同供应商的卵囊进行了评估，结果表明，在抗二氧化氯灭活方面存在显著差异。包括20个参考文献和表格。

Few data are available concerning Cryptosporidium parvum inactivation bychlorine dioxide in natural waters. This study used a cell culture method and in vitro excystation to assess the inactivation kinetics of Cryptosporidium oocysts in three different natural waters (collected post-filtration) and in deionized-distilled water. In addition, the study examined the relationship between easily measured microbial indicators, such as Bacillus subtilis (aerobic) spores and Clostridium sporogenes (anaerobic) spores, and Cryptosporidium parvum oocysts. Finally, oocysts from two different suppliers were evaluated and shown to have marked differences with respect to resistance to chlorine dioxide inactivation. Includes 20 references, tables.