Fig. 3From: A large outbreak of acute gastroenteritis caused by the human norovirus GII.17 strain at a university in Henan Province, ChinaPhylogenetic analyses of noroviruses of the GII.17 strain based on the gene sequence of VP1. The tree shows the comparison between the six noroviruses strains studied and the GII.17 reference strains. The circle represents the stool samples, the square represents the swab samples, and the triangle represents the vomit samplesBack to article page