Fig. 2.

Model scheme of the phylogenetic trees of norovirus (GI/GII.4/GII.17/GII.3/other types of GII) in Seoul. The signs of solid triangle in red and the solid circles in blue indicate the data from surveillance and outbreak, respectively. Characters in blue indicate the candidate standard strains recommended in NoroNet and GenBank for NoV genotyping and sub-clustering. Characters in black indicate global strains obtained from GenBank