Fig. 3.
Phylogenetic analysis of full-length norovirus GII.4 ORF2 gene. Bootstrap values of 1,000 replications are shown on the branches. Strains in boldface indicate the eight representative strains of GII.4 Sydney in Taiwan (GenBank: KC792281-KC792283, KJ433968, KJ433970, KJ451059, and KJ533132-4). Reference sequences from GenBank are named by accession number, year, and country of detection. Reference sequences from the Taiwan CDC are indicated by outbreak number, country, and collection date.