Figure 1

One and 6 months post-vaccination GMT against the three 2011-12 influenza vaccine components adjusted according to pre-vaccination titers. $: p < 0.05; $$: p < 0.01 comparing the two vaccine groups.
One and 6 months post-vaccination GMT against the three 2011-12 influenza vaccine components adjusted according to pre-vaccination titers. $: p < 0.05; $$: p < 0.01 comparing the two vaccine groups.