Effect of Ultraviolet Disinfection of Drinking Water on the Viability of Cryptosporidium parvum Oocysts
- 1 February 1993
- journal article
- Published by JSTOR in Journal of Parasitology
- Vol. 79 (1) , 67-70
- https://doi.org/10.2307/3283279
Abstract
Demineralized water was enriched with a known number of Cryptosporidium parvum oocysts obtained from fresh calf feces, which were purified and exposed to ultraviolet (UV) light (15,000 mW/sec) for different lengths of time. Coccidium-free litters of CD-1 neonatal mice then were inoculated intragastrically with the treated water. Seven days postinoculation mice were killed and C. parvum infection prevalence and intensity determined. In mice inoculated with C. parvum-enriched water that had been exposed to UV light for at least 150 min, no infection occurred.Keywords
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