Fig. 1From: Local and regional temporal trends (2013–2019) of canine Ehrlichia spp. seroprevalence in the USAThe raw canine Ehrlichia spp. seroprevalence from January 2013 to November 2019. Seroprevalence is calculated as the sum of positive tests for the study period divided by the sum of all tests. White counties are those which did not report any testsBack to article page