Figure 4

Alignment of amino acid residues of neutralizing antigenic (NAg) sites.
NAg sites 1 (VP1: 88–106), sites 2 (VP2: 164–173; VP2: 269–271; VP1: 221–226), sites 3a (VP3: 54–61; VP3: 70–74; VP1: 287–292) and sites 3b (VP2: 71–73; VP3: 75–79) for Sabin 1, Guihzou/China cVDPVs and Mahoney strains. The PD50 value of the representative type 1 cVDPV strains from Hispaniola and The Philippines are cited from the previous reports8,9.