| occurrence of cryptosporidium and giardia and the relationship between protozoa and water quality indicators in swimming pools. | a total of 60 samples were collected from 35 swimming pools in beijing, china, and the presence of cryptosporidium and giardia were investigated. the results showed that 16.7% and 15.0% of samples were positive for cryptosporidium oocyst and giardia cysts, respectively, with a mean concentration of 0.30 oocysts/10 l and 0.27 cysts/10 l. the oocysts and cysts were found to have higher rates of occurrence in august than in may. genotyping confirmed the presence of cryptosporidium hominis, c. parvu ... | 2017 | 28506034 |