Because the rapid decay of virus is thought to be due to the clearance of infected cells by CD8+ T cells, it is unknown if early CD8+ T cell presence contributes to infected cell clearance, and no model has captured the entire CD8+ T cell time course, we developed a model that describes the dynamics of these cells and their efficiency in resolving the infection (Equation (1)-(6); Figure 1A). The gene discussed is CD8A; the disease is infection.