When we monitored the percentage of infected cells by intracellular staining with mAb against NS1, which is produced only after productive infection, 60–70% BMDM (CD11b+ or F4/80+) were found to be positive, whereas around 20% BMDC were positive for DenV2 NS1 (Supplementary Figure 3C). This evidence concerns the gene ITGAM and infection.