Major step taken toward universal flu vaccine: studies

Even if a universal influenza vaccine is created, it's unknown if it will actually work or produce unforeseen consequences. So avoiding a serious case of influenza is not about vaccination anyways, but more about maintaining a healthy, well-functioning immune system that will naturally assist you in staying well during the flu season and all year around. In the end it's about keeping your immune system in optimal working order so that you're far less likely to acquire the infection to begin with or, if you get sick with the flu, you are better prepared to move through it without complications and soon return to good health.