Figure 5From: Infection of dogs with Echinococcus granulosus: causes and consequences in an hyperendemic areaHuman echinococcosis and Tunisian region characteristics described by principal component analysis. echhuman: human echinococcosis according to the annual surgical incidence, temp: average yearly temperature, rain: average yearly rainfall, sheepd: sheep density (number/surface of the region), cattled: cattle density, goatd: goat density.Back to article page