Fig. 1.

Phylogenetic analysis of H5N3 viruses for 8 gene segments of KNU18-91: HA (a), NA (b), PB2 (c), PB1 (d), PA (e), NP (f), MP (g), MS (h). The trees were conducted by MEGA 6.0 software with 1000 bootstrap replication. The KNU18-91 gene segments are indicated in red color, isolated H5N3 strains in Korea are shown in blue, purple color indicates H5N3 strains isolated in China, highly pathogenic of H5 avian influenza virus strains are shown in green color. HA, hemagglutinin; NA, neuraminidase; HPAI, high-pathogenic avian influenza.