FLT3LG and infection: Initially, the plasma FLT3L level was significantly downregulated at 6 h (11.7 ± 1.0 pg/mL, p = 0.006), 1 dpi (6.4 ± 0.8 pg/mL, p = 0.0002), 2 dpi (8.1 ± 1.5 pg/mL, p < 0.0001), 3 dpi (8.5 ± 1.6 pg/mL, p < 0.0001), and 4 dpi (11.4 ± 1.8 pg/mL, p = 0.0005), compared to the pre-infection (17.0 ± 1.8 pg/mL) time point.