Who needs a flu vaccine? You do. The single best way to protect against the flu is to get vaccinated each year. Everyone 6 months and older should get vaccinated. (This means you public health communicator! ) Take the CDC Flu Ends with U Vaccination Pledge. Do your part to protect yourself and those around you. Even if you have gotten your flu shot this season, you can still pledge to take friends or family members to get theirs.