ecoepidemiology of tularemia in the southcentral united states. | we combined county-based data for tularemia incidence from 1990 to 2003 for a nine-state region (arkansas, illinois, indiana, kansas, kentucky, missouri, nebraska, oklahoma, and tennessee) in the southcentral united states with geographic information system (gis)-based environmental data to determine associations between coverage by different habitats (especially dry forest representing suitable tick habitat) and tularemia incidence. high-risk counties (> 1 case per 100,000 person-years) cluster ... | 2008 | 18385353 |