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Activity Number:
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34
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Type:
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Contributed
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Date/Time:
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Sunday, July 29, 2007 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Statistics in Epidemiology
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| Abstract - #310360 |
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Title:
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Hills, Valleys, and Rivers: The Transmission of Raccoon Rabies over an Uneven Landscape
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Author(s):
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David Wheeler*+ and Lance Waller
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Companies:
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Emory University and Emory University
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Address:
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996 Greenwood Ave NE, Atlanta, GA, 30306,
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Keywords:
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GIS ; hierarchical models ; infectious disease ; spatial statistics ; landscape epidemiology
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Abstract:
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Landscape features may serve as either barriers or gateways to the spread of certain infectious diseases, and understanding the way geographic structure impacts disease spread could lead to improved containment strategies. This presentation focuses on modeling the space-time diffusion process of a 1977 raccoon rabies outbreak across several states in the Eastern United States. Specifically, we measure the impact that landscape features, such as mountains and rivers, have on the speed of infectious disease diffusion. This work combines statistical modeling with spatial operations in a geographic information system (GIS) to study disease diffusion. We use a GIS to create landscape feature variables that are input into a hierarchical spatial statistical model to quantify their impacts on transmission time between adjacent counties.
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