Figure 3

An illustration of simulated infected CD4⁺ T cell levels with different immune response models. Infected CD4 ⁺ T cell levels from the cytokine and neutralizing antibody models settle to levels that are comparable to those of the basic model (a model without immune system intervention). The parameter values used are given in Table 1 and the initial conditions were $D_0=100,P_0=100,Q_0=100,V_0=100,T_0=750,T_0^{\ast }=100,C_0=1,B_0=1$.