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Descriptive network analysis of Ontario swine movements during 2015

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Title: Descriptive network analysis of Ontario swine movements during 2015
Author: Melmer, Dylan
Department: Department of Population Medicine
Program: Population Medicine
Advisor: Poljak, Zvonimir
Abstract: This thesis examined the role of animal movements and transportation vehicles regarding disease dissemination in the Ontario swine populations. In Chapter 2, results supported a constant theoretical outbreak population size across subsequent weeks. Furthermore, there was an indication of a higher connectivity during specific times of the year (finisher facilities), and support for the sampling of abattoirs for disease surveillance purposes. In Chapter 3, noticeable differences arose from adding trucks to the networks. Weekly theoretical outbreak populations and the number of trucks utilized increased over time in 2015. Furthermore, nursery and finisher facilities had a higher level of connectedness during the summer months (June to September). Lastly, abattoirs were found to still be an appropriate site for disease surveillance. Overall this research supports the need for a consistent understanding of the transportation system in the swine industry. Which adds to a better understanding of the potential for disease dissemination.
Date: 2017-09
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