Yesterday, the CDC published a study where they show that data from 2004 shows that the majority of pediatric deaths occur in children who are un-vaccinated.
CONCLUSIONS: Influenza vaccination was associated with reduced risk of laboratory-confirmed influenza-associated pediatric death. Increasing influenza vaccination could prevent influenza-associated deaths among children and adolescents.
Many other studies have shown that flu vaccination reduce the chance of getting sick, reduce the intensity of the illness, and can also result in faster recovery times.