Fig. 2From: Whole genome sequencing and genetic variations in several dengue virus type 1 strains from unusual dengue epidemic of 2017 in VietnamPhylogenetic tree based on the level of a similar sequence of 72 DENV-1 strains and 47 reference viruses. The viruses fromVietnam in 2017 are denoted by D1, the strains circulated in Vietnam in the past and in the world are denoted by the country name, GenBank accession number and the year causing the diseaseBack to article page