Figure 2

Time evolution of the virological parameters for unplanned therapy interruption subjects. Plasma viremia, CD4⁺ T and CD8 T cell response are plotted for two subjects of the cohort data. They were started on long courses of HAART during the acute phase of the primary infection (from left to right 1 and 3.8 years, respectively). They then underwent unplanned therapy interruptions, with resumption based on medical consensus. The shaded area indicates the reinstitution of therapy. They controlled viremia after the initial treatment interruption for at least one month.