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Comparison of tissue culture and animal models for assessment of Cryptospridium parvum infection
Journal article   Peer reviewed

Comparison of tissue culture and animal models for assessment of Cryptospridium parvum infection

Theresa R Slifko, Debra E Huffman, Bertrand Dussert, James H Owens, Walter Jakubowski, Charles N Haas and Joan B Rose
Experimental parasitology, v 101(2), pp 97-106
2002
PMID: 12427463

Abstract

Cryptospridium parvum Correlation Mouse infectivity Tissue culture HCT-8 cell line Zoonotic ClO 2 Inactivation
The current increased interest for using tissue culture as a surrogate for mouse infection to assess Cryptospridium viability suggests that a comparison of the two models is essential for data interpretation. Therefore, a need remains for a statistical comparison that can demonstrate if infection and inactivation predicted by new tissue culture models are comparable with those predicted by animal models. Data from a total of 31 dose–response trials using both tissue culture and mouse models to assess C. parvum infectivity were compared. The dose needed to infect 50% of the tissue cultures (ID 50) was also compared to each ID 50 in mice. Average ID 50s developed using the logit dose–response method for tissue culture and mice were 8 and 107, respectively, suggesting that tissue culture was more sensitive to infection. However, correlation ( r) between tissue culture and mouse infectivity was statistically significant (0.9167 [95% CI=0.8428 to 0.9594, p<0.0001]). Comparison of oocyst disinfection by UV and chlorine dioxide showed no significant difference between inactivation predicted by tissue culture and mouse models ( p=0.8893; t=0.0141; n=21). These results demonstrate that tissue culture can successfully be used to measure C. parvum infection and can be used for determining inactivation in disinfection studies.

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Collaboration types
Domestic collaboration
Web of Science research areas
Parasitology
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