Figure 5.
Ad-specific T-cell frequency can be detected ex vivo from healthy seropositive donors. PBMCs were isolated from 7 seropositive donors and screened for Ad-specific T cells without prior stimulation. Responses for each donor are shown at 4 × 105 PBMCs (▪) and 2 × 105 (▨). Error bars indicate the standard error of 3 experiments.