Figure 4.

Maximum likelihood phylogenetic tree the VP7 gene (A) and the VP4 gene (B) of Taiwanese G9 strains identified in humans and pigs. The G9 VP7 tree was reconstructed using partial gene sequences (VP7, nt 56–1009; VP4, nt 156–883). In both reconstructions the Tamura 3-parameter substitution model with gamma and invariant sites was used with 1,000 bootstrap replicates. Only >75% bootstrap values are shown. Closed circles indicate Taiwanese porcine strains from 2015; open circles indicate Taiwanese human strains; open diamonds denote Taiwanese porcine strains from 2014 used here as reference.