Fig. 2

The proportion of different mutation sites among CHB patients. (a) The proportion of different mutation sites among the overall HBV mutations; (b), The proportion of different mutation sites among HBV genotype B; (c) The proportion of different mutation sites among HBV genotype C. The pie charts represented the constituent ratio of different mutation sites, with different color representing different mutation sites; Percentage = number of single mutation site in genotype B(C)/the total number of mutation sites in genotype B(C); (d) Dynamic changes in the constituent ratio of primary mutation sites over the past seven years. Percentage = number of single mutation site per year/the total number of mutation sites per year.