FIG 4.

Dispersal history of GETV lineages in China as inferred by a continuous phylogeographic analysis: maximum clade credibility (MCC) tree and 80% highest posterior density (HPD) regions reflecting the uncertainty related to the phylogeographic inference and based on 1,000 trees subsampled from the posterior distribution. MCC tree nodes are colored according to their time of occurrence, and 80% HPD regions were computed for successive time layers and then superimposed using the same color scale reflecting time. In addition to the overall continuous phylogeographic reconstruction, we also mapped the dispersal history of GETV inferred until three years in the past, i.e., 2000, 2007, and 2015, which allows visualization of the progression of the virus spread.