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. 2015 Jun 1;31(6):608–614. doi: 10.1089/aid.2014.0150

FIG. 2.

FIG. 2.

Nucleotide and amino acid diversity of HIV-1 subtype A and B env fragments. (A) Genetic diversity of recently transmitted subtype A strains is lower than that of persistent subtype A and B strains. Patterned bars represent the p-distance values obtained for the nucleotide sequences derived from two subgroups of subtype A: infected PWID and recent and chronic infection cases; open bar represents the values obtained for the nucleotide sequences of subtype B-infected men who have sex with men (MSM). (B) Amino acid diversity of recently transmitted subtype A strains is lower than that of persistent subtype A and B strains. Patterned bars represent the p-distance values obtained for the amino acid sequences derived from two subgroups of subtype A-infected PWID (recent and chronic infection cases); open bar represents the values obtained for the nucleotide sequences of subtype B-infected MSM.