Figure 7From: Investigating the spatial risk distribution of West Nile virus disease in birds and humans in southern Ontario from 2002 to 2005Isopleth maps from kriging the smoothed WNv human risk estimates in southern Ontario (a) 2002, (b) 2003, (c) 2004, (d) 2005 and (e) on average over 2002 to 2005. Coordinates are in the Cartesian coordinate system (in meters).Back to article page