Those who claim they have never had the flu are very lucky, but that doesn't mean they aren't at risk of ever getting the flu.<br /> Clip1-Shutterstock<br />Clip2-Shutterstock<br />Clip3-Shutterstock<br />Clip4-Shutterstock<br />Clip5-Stringr<br />Clip6-Shutterstock<br />Clip7-Shutterstock<br />Clip8-Shutterstock
