Contamination of river water by Cryptosporidium parvum oocysts in western Japan.

  title={Contamination of river water by Cryptosporidium parvum oocysts in western Japan.},
  author={Kageyoshi Ono and Hirokazu Tsuji and Shiba Kumar Rai and Ayaka Yamamoto and Kinya Masuda and Tetsuya Endo and Hak Hotta and Tadayuki Kawamura and Shoji Uga},
  journal={Applied and environmental microbiology},
  volume={67 9},
In Japan, only a few rivers have been inspected for Cryptosporidium parvum contamination, and the methods used had low sensitivity. In 1998 and 1999, we used a method with higher sensitivity to examine all large rivers used as sources of water supply in one prefecture (which we divided into four areas) in western Japan for Cryptosporidium oocysts. One sample was collected at each of 156 sites along 18 rivers, and samples were tested for Cryptosporidium oocysts by immunomagnetic separation… CONTINUE READING


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