Strengthen your defense and get the 💉. One of the most commonly repeated myths about the flu vaccine is that it can give you the flu. The truth is that the injected flu vaccine contains an inactivated virus that cannot give you influenza. If you’re feeling achy or slightly feverish, it’s a normal reaction of the immune system to the vaccine, and generally lasts only a day or two. And if I’ve ever had the flu. These side effects, pale and comparison to the active virus! #GetTheShot