Figure 1.

Maximum-likelihood phylogenetic tree based on 300 nt ORF-2 HEV sequences. Tree root was shortened to gain visibility. HEV-3 sub-genotypes (3a to 3j) are indicated with arrows. GenBank accession number, country (region), host organism, and year of isolation are indicated for reference sequences. Host designations are as follows: H.s., human (homo sapiens); Ssd, domestic pig (Sus scrofa domesticus); Ss, wild boar (Sus scrofa). Sequence from this study is shown in bold red and underlined. Other HEV sequences from Belgorod region are shown in red; sequences from other regions of Russia are shown in green. Tree branches with group reliability >90% are indicated in orange.