Fig. 1From: Prevalence and phylogenetic analysis of hepatitis E virus in pigs in VietnamMaximum-likelihood tree constructed for 348 bp HEV ORF2 nucleotide sequences (nt position 6022–6369) of 19 Vietnamese strains (indicated by red dot ), and reference strains obtained from the GenBank database. Genotype G1-G8 are indicated on the right of the figure. The bar at the bottom of the figure denotes evolutionary distanceBack to article page