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Table 1 Percentage of R5, X4 and R5X4 strains in different genetic subtypes

From: Statistical correlation of nonconservative substitutions of HIV gp41 variable amino acid residues with the R5X4 HIV-1 phenotype

Subtypea R5 (621) X4 (73) R5X4 (79) Total
A (37) 78.4 8.1 13.5 100
B (270) 81.5 9.6 8.9 100
C (164) 87.2 7.9 4.9 100
D (52) 61.5 11.5 26.9 100
others (250) 78.8 10 11.2 100
  1. aThe number of sequences in each subtype and each tropism group is indicated in parenthesis