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Detection of infectious parasites in reclaimed water
Debra E Huffman1, Angela L Gennaccaro, Tracy L Berg
1University of South Florida, College of Marine Science, St Petersburg 33701, USA. dhuffman@seas.marine.usf.edu
Abstract:
The presence of infectious protozoan pathogens in reclaimed water may present an unacceptable health risk. This study was designed similar to a study reported by Garcia et al. (2002), which detected no infectious Giardia cysts in the final effluent of a tertiary treatment facility as determined by animal infectivity (dose 1000 cysts/gerbil). This study also included evaluation of Cryptosporidium oocyst infectivity. Infectious Giardia cysts were detected in the final effluent with 1 gerbil out of 3 inoculated with 250 cysts from reclaimed water showing signs of infection 15 days postinoculation. None of the Cryptosporidium oocysts concentrated from the reclaimed water samples appeared to be infectious.
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