Results from the Bayesian stochastic search variable selection of the Phylogeographic reconstruction of O/ME-SA/PanAsia in Vietnam regions, and related sequences from Kazakhstan and China. Only Bayes factor > 3 are represented as arrows as significant non-zero transmission of O/ME-SA/PanAsia. Most significant transmissions were inferred for some adjacent regions, although inferred transmission between some distant regions was also statistically supported. The heatmap in the lower area of the figure depicts the magnitude of the statistical support (Bayes factor) for transmission rate between geographic regions in Vietnam. This heatmap allows visualizing that more transmission occurred from South Central Coast and the Northeast regions into other areas, whereas the Red River Delta and Mekong Delta were the ones with more incoming transmission from other regions.