Open AccessUV Inactivation of Cryptosporidium hominis as Measured in Cell Culture
Author(s) -
Anne M Johnson,
Karl G. Linden,
Kristina M. Ciociola,
Ricardo De Leon,
Giovanni Widmer,
Paul A. Rochelle
Publication year - 2005
Publication title -
applied and environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 324
eISSN - 1070-6291
pISSN - 0099-2240
DOI - 10.1128/aem.71.5.2800-2802.2005
Subject(s) - cryptosporidium parvum , cryptosporidium , infectivity , microbiology and biotechnology , biology , protozoa , apicomplexa , virology , protozoal disease , feces , immunology , virus , malaria
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.