APOE and influenza: This study investigated the effect of an intravenous agomir-miR-19a/b mixture on susceptibility to influenza in ApoE−/− mice; the results are presented in a flow diagram (Figure 2A) and show that the expression levels of miR-19a/b in the PBMCs and lungs of ApoE−/−+agomir-NC-treated mice were lower than in NC mice.