In this 2017 photo, captured inside a clinical setting, a health care provider and patient consult on influenza vaccine options. The best way to prevent seasonal flu illness, is to get vaccinated every year. CDC recommends everyone 6-months of age, and older, get a flu vaccine every season. There are many vaccine options from which to choose, but the most important thing is for all people 6-months and older, to get an influenza vaccine every year. If you have questions about which vaccine is best for you, talk to your doctor, or other health care professional.