Fig. 4.

T cell activation on pre-ART and 6 months after. CD4⁺ (a) and CD8⁺ (b) T cell activation were measured by flow cytometry. P values were calculated using the Mann–Whitney test. All values < 0.05 were considered statistically significant. HIV-neg, HIV-1 uninfected individuals; LcHI, late treated chronic HIV-1 infection (median of 5 years after cART initiation); EcHI, early chronic HIV-1 infection; AHI, acute HIV-1 infection; M6 ART, 6 months after ART start; and M12 ART, 12 months after ART start