Figure 5From: Seroprevalence of Ehrlichia canis, Ehrlichia chaffeensis and Ehrlichia ewingii in dogs in North AmericaCorrelation between the average number of reported cases of HME/million people by state and seroprevalence for E. chaffeensis (grey) and E. ewingii (black) in dogs by state. Analysis excluded HME rates and canine seroprevalence from those states where the veterinary institutions had a biased collection of samples from young dogs within the population.Back to article page