Myeloid cell activation was also assessed in the cerebral cortex (Figure 3i‐l), hippocampus (Figure S6A‐D), and cerebellum (Figure S6E‐H) via immunohistochemical staining for Iba1 and CD68 during acute infection (9 dpi) and following viral clearance (30 dpi). This evidence concerns the gene AIF1 and infection.