Emergence of dengue virus serotype 2 in Mauritania and molecular characterization of its circulation in West Africa
Fig 1
Maximum-likelihood phylogenetic tree based on complete genome of DENV-2 strains.
DENV-2 strains from our data set are indicated by red circles for Mauritanian strains and red triangles for strains from other West African countries. Each strain is identified by its GenBank accession number, country of origin and year of sample collection. Reference DENV-2 genotyping alignment was completed with complete coding sequences available on GenBank selected based on nucleotide identity (>95%) or country of origin (Africa). Bootstrap support values (percentage of 1000 replicates) are shown at nodes. Scale bar indicates genetic distance (nucleotide substitutions per site). The tree was rooted with reference strains of DENV-1 (MH888331.1), DENV-3 (MH888333.1), and DENV-4 (MF004387.1) (not shown). Scale bar indicates nucleotide substitutions per site. DENV, dengue virus.