Everyone 6 months and older should get a flu vaccine every season with rare exceptions. Vaccination is particularly important for people who are at high risk of serious complications from influenza. People at High Risk of Developing Flu-Related Complications has a full list of age and health factors that confer increased risk. Learn more about the flu from the CDC links on this page and how you can get this vaccination. 

See details at https://saundersmedicalcenter.com/clinic/flu.html