Fig. 4

SkyGrid reconstruction for HBV-A (A) and HBV-D (B). The graphs show the relationship between the effective number of infections (y axis) and the chronological time expressed in years (x axis). The blue curve indicates the mean, and the 95% HPD interval is shown by the blue filling. Estimates were obtained using 29 HBV-A and 57 HBV-D sequences of a 650 nucleotide fragment of HBV S-gene from Yakutia