During the drop in bioluminescence, at day 15 post infection of the acute self-limited HBV infection with 107 pfu Ad-HBV-Luc, we counted approx. 45,000 CD45.1 CD8 T cells/liver and were able to detect also CD45.1 CD8 T cells in the blood (Figure 5B). The gene discussed is CD8A; the disease is infection.