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Dissertation_KIMT_8_April_2016.pdf (2.72 MB)

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The Wildlife-Livestock Interface of Infectious Disease Dynamics: A One Health Approach

Moreno Torres, Karla Irazema
http://orcid.org/0000-0001-9755-0938
http://rave.ohiolink.edu/etdc/view?acc_num=osu1460896947

Abstract Details

2016, Doctor of Philosophy, Ohio State University, Comparative and Veterinary Medicine.
Surveillance for wildlife diseases is critical to our understanding of the emergence, transmission, persistence and control of infectious diseases at the interface of humans, domestic animals, and wildlife populations. Neospora caninum is a protozoan parasite capable of infecting a wide range of canid and ungulate species. The importance of the disease relates to economic losses, mainly derived from endemic or epidemic abortions in cattle. In the United States, coyotes and dogs are believed to be the main definitive hosts and white-tailed deer and cows are the main intermediate hosts. Our overall aim was to better understand the wildlife-livestock interface of N. caninum in natural settings. First, we estimated the true prevalence of N. caninum in three ruminant species by using Bayesian inference. We identified and discussed differences between apparent and true prevalence (TP). Differences in TP for some species suggest differences in the epidemiology of N. caninum for these co-located populations. Second, we evaluated the environmental phase of N. caninum shed in wild canid scats. Results suggested that the role of this environmental phase in the transmission to ruminants is likely minor. Finally, we evaluated the role of host species heterogeneity in the epidemiology of N. caninum circulating in a community. We identified differences in the patterns of immunity, age structure, and maternal and/or fetal antibody duration in three intermediate (ruminant) host species. Also, we estimated the species-specific contributions to the persistence of this pathogen in a community. This research was approached from the One Health perspective and provided a better understanding of N. caninum dynamics at the wildlife-livestock interface in an ecosystem.
Rebecca Garabed (Advisor)
Mark Moritz (Committee Member)
Barbara Wolfe (Committee Member)
William Saville (Committee Member)
133 p.
Animal Diseases; Applied Mathematics; Biology; Biostatistics; Computer Science; Conservation; Cultural Anthropology; Ecology; Environmental Health; Epidemiology; Geographic Information Science; Health Sciences; Livestock; Parasitology; Veterinary Services; Wildlife Conservation; Zoology
multi-host parasites; Neospora caninum; wildlife-livestock interface; infectious disease modeling; disease ecology; epidemiology; One-Health; community; human dimensions; prevalence; wildlife conservation; multidisciplinary; complexity; parasitology

Recommended Citations

Citations

  • Moreno Torres, K. I. (2016). The Wildlife-Livestock Interface of Infectious Disease Dynamics: A One Health Approach [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1460896947

    APA Style (7th edition)

  • Moreno Torres, Karla. The Wildlife-Livestock Interface of Infectious Disease Dynamics: A One Health Approach . 2016. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1460896947.

    MLA Style (8th edition)

  • Moreno Torres, Karla. "The Wildlife-Livestock Interface of Infectious Disease Dynamics: A One Health Approach ." Doctoral dissertation, Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1460896947

    Chicago Manual of Style (17th edition)

osu1460896947
734
© 2016, some rights reserved.Creative Commons License The Wildlife-Livestock Interface of Infectious Disease Dynamics: A One Health Approach by Karla Irazema Moreno Torres is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by The Ohio State University and OhioLINK.