RELATED: Health officials urge flu vaccines amid 'twindemic' fearsOnly a test can tell the two apart.AdvertisementThe U.S.
Centers for Disease Control and Prevention recommends the flu vaccine for everyone starting at 6 months of age, and suggests getting it by the end of October.Medical experts are hoping the flu shot this year will help prevent a ‘twindemic’- an epidemic of influenza paired with a second wave of COVID-19 which could lead to overwhelmed hospitals amid the coronavirus pandemic. (Photo by Mario Tama/Getty Imag The CDC says the vaccine will not cause you to fall ill with the flu, and that the protection it provides takes about two weeks to kick in.