NAMPT and infection: Notably, NAMPT protein levels remained elevated at later stages of infection, with a 1.77-fold increase at 21 dpi (SD ± 0.45, p = 0.0237) and a 2.93-fold increase at 24 dpi (SD ± 2.57, p = 0.0052) compared to mock controls (Figure 5G, see also Figure S2).