(A) Appearance of a positive ICD-p24 Ag over time in individual patients of each LTNP group. (•), Individual patients in LTNP I group; (○), individual patients in LTNP II group. (B) Plasma HIV RNA copy level in LTNPs negative for ICD-p24 Ag (n = 13) and in LTNPs positive for ICD-p24 Ag (n = 8). (▪), ICD-p24 Ag-positive patients (n = 8); (□), ICD-p24 Ag-negative patients (n = 13).