Fig. 8.

PCA plot illustrating the distances between transmission trees inferred by TransPhylo and sampled using STraTUS, derived from the timed phylogenetic tree of the Roetzer outbreak, previously published by Didelot et al. (2017). The colors indicate the algorithm used and the number of unsampled cases selected in STraTUS. The shaded areas enclose all the trees in each sample and give an idea of the extent of the corresponding MDS spaces. The squares represent the geometric median tree of each sample.