ANRS-EP38-IMMIP is a non interventional study. A single blood sample (30 mL) was drawn during
a hospital visit for clinical follow-up. Immunological assays were performed on fresh blood.
Cells and plasma were stored and kept frozen for additional biological evaluations.
Patients are included in the French perinatal cohort (ANRS CO-10), or have been followed
since before 1996 in the same clinical sites as patients who belong to ANRS CO-10. In the
ANRS CO-10 cohort, all patients are prospectively followed from birth.