While the benefits of vaccinating health care workers against influenza are known, the number of vaccinated employees remains inadequate. This article describes survey results from 999 Advocate employees. Statistically significant differences were identified in receiving the influenza vaccine based on age, recommendation of the flu vaccine to others, working environment, and race. The major reason identified for receiving the vaccine was to stay healthy. The most common reason cited for not receiving the vaccine was receiving the vaccine before and getting sick anyway. Results of the study were used to refine education and communication strategies, improving the employee vaccination program.