Figure. Phylogenetic analysis of the viruses detected in this study based on the nucleotide sequences of the virus capsid protein (VP)4/VP2 region. Using the VP4/VP2 nucleotide sequence (258 nt), we performed neighbor-joining analysis by applying the Kimura 2-parameter model in MEGA software version 4.0 (www.megasoftware.net). Bootstrap values from 1,000 replicates are shown next to the branches. The scale bar indicates evolutionary distance. Representative viruses from the different human respiratory virus (HRV) groups are included. GenBank accession numbers for reference sequences are indicated in parentheses.