UV inactivation of Cryptosporidium hominis as measured in cell culture |
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| Authors: | Johnson Anne M Linden Karl Ciociola Kristina M De Leon Ricardo Widmer Giovanni Rochelle Paul A |
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| Institution: | The Metropolitan Water District of Southern California, Water Quality Laboratory, 700 Moreno Avenue, La Verne, CA 91750, USA. |
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| Abstract: | The Cryptosporidium spp. UV disinfection studies conducted to date have used Cryptosporidium parvum oocysts. However, Cryptosporidium hominis predominates in human cryptosporidiosis infections, so there is a critical need to assess the efficacy of UV disinfection of C. hominis. This study utilized cell culture-based methods to demonstrate that C. hominis oocysts displayed similar levels of infectivity and had the same sensitivity to UV light as C. parvum. Therefore, the water industry can be confident about extrapolating C. parvum UV disinfection data to C. hominis oocysts. |
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