SaTScan results for 2003 at various population thresholds. Results of running the spatial scan statistic with varying population limits for human WNV incidence in the continental United States for 2003 are shown. Blue indicates areas with low rates of human WNV incidence and red represents areas with high rates of human WNV incidence.
Sugumaran et al. International Journal of Health Geographics 2009 8:43 doi:10.1186/1476-072X-8-43