Additionally, when we plotted the percentage of CD8lo/CD11ahi cells in PBL 10 days following infection versus concentration of IFN-α or IFN-γ found in serum 3 days following infection or viral PFUs found in the serum 4 days following infection, we did not find a statistically significant correlation based upon linear regression analysis (Figure 2D). This evidence concerns the gene IFNG and infection.