Fig. 2

Phylogenetic analysis of norovirus (NoV) isolates based on the partial capsid nucleotide sequences (~330 bp). Phylogenetic relationships were inferred using the neighbor-joining method by MegAlign program. Percentage bootstrap values (1000 trials) of the major nodes are shown. The unit at the top of the tree indicates the nucleotide substitutions per site. The NoV isolates detected in this outbreak were highlighted in bold and named as “DSO-” followed by the sample ID. All other sequences were obtained from the NCBI public database. The NoV sequences were submitted to GenBank under accession numbers KU298647-KU2986762