Figure 4From: Infection of dogs with Echinococcus granulosus: causes and consequences in an hyperendemic areaDog echinococcosis and Tunisian region characteristics described by principal component analysis. echdog: dog faeces contamination index by E. granulosus eggs, temp: average yearly temperature, rain: average yearly rainfall, sheepd: sheep density (number/surface of region), cattled: cattle density, goatd: goat density.Back to article page