Fig 2.

Directional network modeling: (A) edges describing the parasite-host transmission and (B) nodes size reflecting the Eigen vector centrality (refer to S3 Table for Eigen values). The model reflects the relationship types as edges (arrows) and the subjects as nodes (circles). Network modeling evaluates the relationship or interaction between the parasite and the host. Eigen vector centrality is reflected by the node size and the Eigen value measures the influence of a node in the network. A high Eigen value means that a node is connected to many nodes which themselves have a high scores.