Better knowledge and regular vaccination practices correlate well with higher seasonal influenza vaccine uptake in people at risk: Promising survey results from a university outpatient clinic

Highlights • People at risk or people who were vaccinated previously were associated with higher vaccine uptake and better knowledge of influenza and vaccination. • Periodic vaccination policies could increase vaccination uptake for people and their families. • Getting official information or a recommendation from a physician could influence people's decision about influenza vaccination.