Like many of the previous posters I didn't think I needed a flu shot, then I contracted the flu five years ago. I had no underlying health issues that put me at risk, but the flu put me on my back for almost two weeks. I was so sick that I thought death may have been an option to improve my condition. I've been getting flu shot ever since with no ill effects. In my opinion the benefits far outweigh the risks, which after careful study seem to be be very low.