HIV-1 Epidemiology, Genetic Diversity, and Primary Drug Resistance in the Tyumen Oblast, Russia

Figure 5

Neighbor-joining phylogenetic tree analysis of HIV-1 env gene fragment sequences from HIV-infected residents of Tyumen Oblast. Genetic distances were estimated using Kimura’s two-parameter model; clustering of strains was tested with 1000 bootstrap replicates; and statistical significance of the phylogenetic tree topology was estimated using bootstrap analysis.