A GIS Model of Arboviral Risk Assessment in Florida Jonathan Day, Gregory Ross, and Roxanne Connelly University of Florida Florida Medical Entomology Laboratory Vero Beach, Florida

Factors that Drive Vector-borne Disease Epidemics Environmental Factors Pathogen Amplification Host Vector

Culex nigripalpus: An Important Arboviral Vector in Florida

Water Table 1.6 meters below surface Low areas (ditched, furrows, sinkholes) during periods of drought Water Table 1.6 meters below surface Culex nigripalpus ovisposition sites during periods of wetting Water Table 1.0 meters below surface Water Table 1.3 meters below surface Water Table 0.8 meters below surface

Jeffrey Shaman, Oregon State University Gregg Ross, FMEL Jeffrey Shaman, Oregon State University

589 MWTD data recording stations across peninsular Florida

Figure 3

Modeled Water Table Depth 1 2 3 589 Data Points MWTD values MWTD Maps RISK Maps

GIS RISK Maps 3 RISK model comparison MWTD values RISK values

Pinellas County Florida: 2005 Case Study Arboviral transmission risk for May 2005

Onset Dates: 1 June to 22 August, with 15 reported during July, 2005

MWTD Data for the Pinellas County, FL WNV outbreak of 2005 MWTD recording sites MWTD data for Pinellas County, 2005 Florida Medical Entomology Laboratory

2003 2004 2005 2006 Humans Modeled Water Table Depth Cx. nig Sentinels Week Number