FIG. 4.

HIV-1 RNA plasma viral loads during the first year of life in infants with or without HIV-1-specific IFN-γ responses detected at 1 month of age. (A) Twelve infants infected with HIV-1 in utero: 7 with month 1 HIV-1-specific IFN-γ early responses, 5 without. (B) Twenty infants infected peripartum: 6 with HIV-1-specific IFN-γ responses, 14 without. Open symbols/dashed lines represent individuals who lacked detectable HIV-1-specific IFN-γ responses at 1 month of life. Closed symbols/solid lines represent those who had month 1 HIV-1-specific IFN-γ responses. The mean log₁₀s of HIV-1 RNA copies per ml plasma for infants with month 1 HIV-1-specific IFN-γ responses are indicated by bold solid lines; the mean log₁₀s of HIV-1 RNA copies/ml plasma for infants without month 1-specific responses are represented by bold dashed lines.