CD4 and HIV infectious disease: Included were 140 patients, mean age 37 years, CD4 nadir 356 cells/μL, median time of clinical evolution of the HIV infection around 33 months (IQR: 11–84), 78% on treatment with combination anti-retroviral therapy (ARTc) over a median period of 23.5 months at which time there were 652 cells/μL CD4, and only 6% in virologic treatment failure The characteristics are summarized in Table 1.