Fig. 5From: Molecular characteristics of the VP1 region of enterovirus 71 strains in ChinaThe genotypic distribution of EV71 every year in mainland China. The C4a subgenotype was absolutely the predominant strain of EV71 from 2005 to 2018, followed by theC4b subgenotype; other subgenotypes appeared sporadically in mainland ChinaBack to article page