In the remitted MDD group, Tukey’s test revealed significantly lower levels of TNF-α after the TSST than after placebo (Tukey’s t = 3.46; p = 0.0150; 99% CI (0.0088 to 0.1447)) or vaccination (Tukey’s t = 3.07; p = 0.0484; 99% CI (0.0004 to 0.2095)) within the non-traumatized group and lower levels after the vaccination in the traumatized as compared to the non-traumatized group (Tukey’s t = 3.25; p = 0.0286; 99% CI (0.0068 to 0.2237)) (Figure 3). The gene discussed is TNF; the disease is major depressive disorder.