Article Abstract:
Analysis of an American Society for Testing and Materials (ASTM) immunofluorescent-antibody-based detection method and its alternate method shows that the ASTM method is more effective in evaluating Giardia cysts and Cryptosporidium oocysts in water that contains large amounts of algae but the method is expensive and time consuming. On the other hand, the alternate method is cheaper and faster but gives good results only in clear water that contains the seeded parasites. In both the method most of the cysts and oocysts are lost during the flotation step, and this step should therefore be avoided.
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Article Abstract:
Relevant information regarding the waterborne giardiasis and cryptosporidiosis were collected from the Canadian North, with Yukon as its model system. The prevalence, sources and potential of these waterborne transmissions were determined by the collection of epidemiological data, water samples, sewage samples and animal fecal samples. It was found thatthe latitude and position of the Yukon largely affected the treatment of sewageand the protection of drinking water sources of the area.
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Article Abstract:
A total of 1,647 sheep fecal samples were screened in Western Australia for the presence of Cryptosporidium and Giardia spp. using microscopy. Analysis revealed that although both parasites were detected in a high proportion of samples, with the exception of one Cryptosporidium hominis isolate, the majority of isolates genotyped are not commonly found in humans.
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