Fig. 4

Phylogenetic tree (NJ) of hantaviruses based on partial M segment sequences of all Hantaviruses isolated in this study. The analysis was performed with MEGA software. The numbers at the nodes are bootstrap confidence levels for 1000 replicates. 19 partial M segment sequences of SEOV isolates and 10 partial M segment sequences of HTNV isolates were used to construct this phylogenetic tree with the reference sequences Hantaan 76-118 and Seoul 80-39. The GenBank accession numbers of the reference SEOV and HTNV genes were S47716 and Y00386 as showed in Table 2