Figure 8.

Dispersal routes of human-like H3 swine influenza virus between states inferred from the PB2 gene segment. Dispersal routes with non-zero rates were inferred using the Bayesian stochastic search variable selection (BSSVS) approach, and statistically significant routes were selected using Bayes factors (BF). The top three dispersal routes with the strongest statistical support (by the BFs) are plotted. Arrows' colors correspond to the color legend of their BF values on the upper right of each map. (A–D) Dispersal routes inferred from four node-age + asymmetric BSSVS priors. (E–H) Dispersal routes inferred from four node-age + symmetric BSSVS priors.