Vaccination with AS04-adjuvanted M2e5x protein induces improved protection.

<p>Groups of BALB/c mice (<i>n</i> = 4) were challenged with a lethal dose of A/Philippines/2/82 (H3N2) virus at 4 weeks after 3rd vaccination. Survival rates (A) and body weight (B) were monitored for 14 days. Error bars indicates mean ± SEM. The data are representative out of two independent experiments.