... Department of Environmental Health, National Institute of Public Health, 2-3-6 Minami, Wako, Saitama 351-0197, Japan **Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, ... understand the annual and diurnal profiles of Cryptosporidium and Giardia, representative waterborne infectious protozoans, in river water which is used for drinking water sources in Japan. To investigate ... quality standard indicating microbiological (fecal) contamination in public water bodies in Japan. ACKNOWLEDGMENT Part of this study was financially supported by the Ministry of Environment,...