61% Percentage of all hospitalizations from influenza of people ages 18–64 in the 2013-2014 flu season
35% Percentage of hospitalizations for people ages 18–64 in the previous three flu seasons
60% Percentage of deaths from the flu in the 2013-2014 flu season in people ages 25–64 yea
60% Reduction in risk percentage of patients having to go to the doctor, among people of all ages who got the flu vaccine in the 2013-2014 flu season

Source: The Centers for Disease Control and Prevention