Figure 1

Undirected and unweighted dog contact networks. Nodes represent dogs and edges contacts between two dogs. Within these example networks it can be seen that some dogs are more connected than others. (A) Chad—rural 2 (network size = 24), (B) Guatemala—rural 2 (n = 121), (C) Indonesia—rural 2 (n = 61), (D) Uganda—urban/semi-urban (n = 82).