Figure 5.

Date of collection vs. root to tip SNP distance of the 5 largest clusters. A. Clusters were rooted using their topology in the entire maximum likelihood tree. Linear regression was fitted using Path-O-Gen [21]. B. Data combined from A. Time represents days since first isolation in the cluster. Shaded area indicates 95% confidence interval.

Bryant et al. BMC Infectious Diseases 2013 13:110   doi:10.1186/1471-2334-13-110
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