IFNA1 and infection: However, on post-infection day 2, the production of TNF-α was significantly higher in DENV-2-infected monocytes than in non-infected monocytes—16.4 pg/ml (6.1–38.6 pg/ml) vs. 1.9 pg/ml (0.7–2.1 pg/ml) (p = 0.060)—as was that of IFN-α—432.1 pg/ml (184.3–1609.0 pg/ml) vs. 7.6 pg/ml (7.3–8.7 pg/ml) (p = 0.008)—as shown in Figure 3 (B,C).