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Bayesian time-scaled tree of Bulgarian Ia HAV sequences (fifth dataset). The time of the most recent common ancestor, with the credibility interval based on 95% highest posterior density interval (95% HPD), was reported in years. Scaled years are reported at the bottom of the figure. One (∗) along a branch represents significant statistical support for the clade subtending that branch (posterior probability > 98%). HAV = hepatitis A virus, HPD = highest posterior density.
