TLR7 and influenza: Lipidated TLR7/8 adjuvants drove a predominantly IgG2a influenza-specific response compared to non-adjuvanted A/Vic (Figure 2D) as evidenced by the fact that IgG2a titers were increased more than IgG1 titers by adjuvanting with UM-3003, -3004, and -3005 compared to A/Vic alone.