Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Fecal shedding"”.
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Immune response to and pathogenesis of porcine epidemic diarrhea virus
… responsible for the long duration of viral fecal shedding, and identify the putative receptor-binding domain of the virus.</p> <p>The first study characterized clinical and antibody response of pigs following experimental PEDV infection/re-infection. After experimental inoculation, naive …
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Expression and Purification of the C-Terminal Domain of Porcine Epidemic Diarrhea Virus (PEDV) S1 Protein
… virus is highly contagious, with high rates of fecal shedding during infection. To control the outbreak, the USDA had approved two emergency-relief vaccines, but both have proved to be ineffective at preventing disease or reducing fecal shedding. These vaccines are still available today. As …
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Pathogenesis, immunity, and prevention of human norovirus infection in gnotobiotic pigs
… evidenced by the significantly reduced HuNoV shedding in feces and HuNoV titers in intestinal tissues and blood compared to control pigs. Moreover, HuNoV infection of enterocytes but not B cells was observed with or without E. cloacae colonization, indicating B cells were not a target cell …
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Application of yeast technology in ruminant nutrition
… carcass merit, cost of gain (COG) (Exp. 2), and fecal prevalence of the foodborne pathogen, E. coli O157:H7 (Exp. 3). In Exp. 1, supplementing the diets of pregnant beef cows maintained on dormant winter range with DDGS improved cow performance, had limited impact on nitrogen or mineral status, …
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Study of Infection, Immunity, Vaccine and Therapeutics Using Gnotobiotic Pig Models of Human Enteric Viruses
… signs, similar to those seen in human patients. Fecal shedding up to 18 days post infection and virus distribution in intestinal, respiratory and central nervous system tissues were observed. Strong mucosal and systemic T cell responses (IFN-γ producing CD4+ and CD8+ T cells) and systemic B cell …
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Age and Dose Dependent Susceptibility to Mycobacterium avium subspecies paratuberculosis Infection in Dairy Calves
… the course of immune responses as well as fecal shedding was assessed. Furthermore, gross lesions, histology and MAP-culture from tissues were used to confirm infection status of each calf, and to investigate age-dependent susceptibility. Fifty calves were inoculated per os on 2 consecutive …
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Structural and Mechanistic Roles of Novel Chemical Ligands on Quorum Sensing Transcription Regulator SdiA in Enterohemorrhagic Escherichia coli
… Colonization at the RAJ poses a serious risk for fecal shedding and contamination of the environment. We previously demonstrated that EHEC senses AHLs produced by the microbiota in the rumen to activate the gad acid resistance genes necessary for survival through the acidic stomachs in cattle and …
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Agent-based and contact network modeling applications for Escherichia coli transmission in commercial feedlot settings
… Pen-level area under the curve (AUC) for fecal shedding concentrations of each nonpathogenic strain were evaluated and the strain with the highest pen average fecal AUC was selected for use in two independent inoculation trials that each occurred in one independent pen of 70 feedlot …
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Using prophylactics to improve resistance against Enterobacteriaceae in chickens
… host responses and subsequently results in fecal Salmonella shedding and contamination of poultry products. Thus, novel prophylactics which can stimulate host intestinal responses and overcome these immunotolerant mechanisms to clear intestinal Enterobacteriaceae like Salmonella are needed …