Maximum-clade credibility tree for dengue virus serotype 2 in study of transmission dynamics of dengue in large and small population centers, northern Ecuador. Tree was constructed using whole-genome sequences from Ecuador (blue), Colombia (green), and Venezuela (purple), combined with envelope gene sequences from Colombia departments (Nariño, Valle del Cauca, Putumayo, and Norte de Santander), and generated in BEAST software (https://beast.community). Within Ecuador, samples from Esmeraldas Province are within the yellow shaded area, and El Oro Province samples are within the orange shaded area. Posterior probabilities are shown in internal nodes.