Figure 2

Bayesian skyline plot based on VP1 of (A) the 248_data (B) swine vesicular disease virus, and (C) coxsackievirus B5 sequences. The x-axis shows the time scale in years; the y-axis is the logarithmic effective population size (EPS) scale (Ne, EP; τ, generation time). The thick solid line indicates the median EPS, and the shaded area indicates the 95% highest posterior density.