Description of the samples and molecular characteristics of the <i>env</i> clones.

<p>dN and dS values result from comparisons between <i>env</i> sequences from a given time-point to sequences from previous one. Mean values and ninety-five percent confidence intervals (CI 95% in brackets) are shown. Estimates of evolutionary divergence over sequence pairs relative to the virus population at enrollment (T0). VL: viral load; cp/mL: copies/mL. Nb AA: number of amino-acids.