A lower proportion of individuals with a positive IFN-gamma response to HIV-1 p24 was observed in patients at a declining clinical stage: 62% in asymptomatic patients (CDC group A, n = 16) versus 19% in symptomatic patients (CDC groups B and C, n = 21; P = 0.007, chi2 testing), whereas the proportion of individuals with a positive IL-4 response to HIV-1 p24 was almost similar in both groups of patients (25% versus 23.8%).
C0231221
Asymptomatic