Fig. 7

Maximum Likelihood phylogenetic trees of partial VP1 in norovirus GII.3. 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. Phylogenetic tree of GII.3, the third most prevalent genotype, detected in the Seoul surveillance during 2014–2016. GII.3|Hu/3-28/2015/HNZZ/CHN was detected from both outbreak and surveillance, however, GII.3|Hu/Aichio334-13/2013 was found only in surveillance test