ArticleParasitology research2013
Description of fecal shedding of Cryptosporidium parvum oocysts in experimentally challenged dairy calves.
Article in Parasitology research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed.
- Prevalence of cryptosporidiosis and other enteric pathogens in calves in France: effects of rotavirus, coronavirus and E. coli vaccination and transmission routes.Veterinary research · 2026Article
- Mouse Models for Use in Cryptosporidium Infection Studies, Quantification of Parasite Burden Using Flow Cytometry, qPCR and Histopathology, and Confocal Imaging of Oocysts.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Cryptosporidium parvum multidrug resistance protein confers resistance to toxic gut microbial metabolite.Cell host & microbe · 2025Article
- Article
- Apical-out bovine intestinal organoids as an infection model forCurrent research in parasitology & vector-borne diseases · 2025Article
- Development of the Intestinal Microbiota of Dairy Calves and Changes Associated withMicroorganisms · 2024Article
- Effect of Dietary Supplementation of Chestnut and Quebracho Tannin Supplementation on Neonatal Diarrhoea in Preweaning Calves.Antioxidants (Basel, Switzerland) · 2024Article
- Understanding theFrontiers in parasitology · 2024Review
- Microbiota-produced indole metabolites disrupt mitochondrial function and inhibit Cryptosporidium parvum growth.Cell reports · 2023Article
- Microbiota produced indole metabolites disrupt host cell mitochondrial energy production and inhibitbioRxiv : the preprint server for biology · 2023Article
- An update onJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2022Review
- Overview onJournal of tropical medicine · 2022Article
- Pathology of cryptosporidiosis in raccoons: case series and retrospective analysis, 1990-2019.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2021Article
- Spontaneous Selection ofAntimicrobial agents and chemotherapy · 2021Article
- Genetic diversity and shedding profiles forCurrent research in parasitology & vector-borne diseases · 2021Article
- Article
- Copro-microscopical and immunological diagnosis of cryptosporidiosis in Egyptian buffalo-calves with special reference to their cytokine profiles.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2020Article
- Review
- Long-term use of yeast fermentation products in comparison to halofuginone for the control of cryptosporidiosis in neonatal calves.Veterinary parasitology · 2019Article
- Infection dynamics ofVeterinary parasitology: X · 2019Article
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The objective was to describe the probability of Cryptosporidium parvum fecal oocyst shedding at different magnitudes of exposure, the pattern of fecal shedding over time, and factors affecting fecal shedding in dairy calves. Within the first 24 h of life, 36 calves were experimentally challenged with C. parvum oocysts at one of four possible magnitudes of oral exposure (1 × 10(3), 1 × 10(4), 1 × 10(5), and 1 × 10(6) oocysts), and 7 control calves were sham dosed. Fecal shedding occurred in 33 (91.7 %) experimentally challenged calves and in none of the control calves. There was a difference in the log-total number of oocysts counted per gram of feces dry weight among the four exposure groups; calves with the lowest magnitude of exposure (1 × 10(3) oocysts) shed less than the other three groups. At higher magnitudes of exposure, there was more variability in the range of fecal oocyst shedding. There was an inverse relationship between the log-total amount of oocysts counted per gram of feces dry weight and the number of days to the onset of fecal shedding per calf, i.e., the more time that elapsed to the onset of fecal shedding, the fewer oocysts that were shed. The pattern of fecal shedding over time for all calves shedding oocysts was curvilinear; the number of oocysts increased with time, reached a peak, and declined. Therefore, the dynamics of oocyst shedding can be influenced in part by limiting exposure among calves and delaying the onset of fecal oocyst shedding.
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