For HIV-1BaL-infected lymphoid tissues, IL-7 increased Bcl-2 expression in HIV-1-infected CD4+ T cells 2.2±0.2 fold and 2.6±0.2 fold on day 6 and 9 post infection, respectively (n = 6, p<0.001) (Figure 6B). The gene discussed is IL7; the disease is infection.