Figure 1.
Interferon-γ enzyme-linked immunosorbent spot assay Responses to Env Following DNA/ polylactide coglycolide (PLG) Priming and Oligomeric, V2-deleted Glycoprotein Boosting. Responses are expressed as the number of spot-forming units (SFUs) per 106 cells. Env responses are shown at 2 weeks following the completion of DNA/PLG priming (day 70) and 2 weeks after receipt of the first and second protein boosts (days 182 and 287, respectively). The numbers of positive responders in each group are indicated at the top of the figure.