FIG. 1.

HIV-2-infected patients demonstrate high thymic function. (A) The sj/βTREC ratio, a measure of thymic activity, was calculated for healthy individuals (controls [Ctrls]) and HIV-1- and HIV-2-infected patients. The three groups were subdivided into groups by age (35 to 45 years old and >45 years old). Gray symbols represent healthy control individuals of African origin. Statistical differences (P values) between the different groups are shown above the values (Mann-Whitney test). NS, not significant. (B) Correlation between the sj/βTREC ratio and age in healthy controls (white and gray symbols, representing Caucasian and African individuals, respectively, and HIV-2-infected patients (black symbols). Spearman's correlation and associated probability are shown for the control group.