Spatio-temporal analysis of the relationship between WNV dissemination and environmental variables in Indianapolis,USA |
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| Authors: | Hua Liu Qihao Weng David Gaines |
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| Affiliation: | (1) Department of Political Science and Geography, Old Dominion University, Norfolk, Virginia 23529, USA;(2) Center for Urban and Environmental Change, Department of Geography, Indiana State University, Terre Haute, Indiana 34709, USA;(3) Office of Epidemiology, Virginia Department of Health, , Richmond, Virginia 23219, USA |
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| Abstract: | Background This study developed a multi-temporal analysis on the relationship between West Nile Virus (WNV) dissemination and environmental variables by using an integrated approach of remote sensing, GIS, and statistical techniques. WNV mosquito cases in seven months (April-October) of the six years (2002–2007) were collected in Indianapolis, USA. Epidemic curves were plotted to identify the temporal outbreaks of WNV. Spatial-temporal analysis and k-mean cluster analysis were further applied to determine the high-risk areas. Finally, the relationship between environmental variables and WNV outbreaks were examined by using Discriminant Analysis. |
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