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. 2010 Jul 27;4(7):e766. doi: 10.1371/journal.pntd.0000766

Figure 4. DENV-2 Asian I genotype dispersal across a population density gradient in HCMC and southern Viet Nam.

Figure 4

Map showing significant pathways of diffusion estimated between three regions of gradated population density within HCMC and the remaining nine provinces of southern Viet Nam. Solid lines indicate diffusion pathways among regions with a shared border. Dashed lines indicate diffusion pathways among regions that do not have a shared border. Numbers in parentheses indicate the number of sequences included in each group.