Figure 3

Evidence of antibody to Ehrlichia spp. in dogs by county, grouped according to percent positive tests. No results (<30) were received from counties shaded gray, precluding interpretation of the presence of antibody in dogs from these areas. Counties depicted in white had no dogs reported as positive (0%). Remaining counties were coded as follows: 0.1-0.5% (light purple), 0.5-1.0% (purple), 1.1-2.0% (dark purple), and > 2.0% (very dark purple).