If you don't mind me asking, where did you hear that the flu shot hurts your immune system.? That is the last thing I need, as I have a compromised immune system. Several years ago I went on a cruise, came home violenty sick with type A Asian flu. I was down in bed for 6 weeks, and I thought I would die it was so bad. Since then I have been getting my yearly shot. I don't get over infections easily, and that flu scared the be-jeeze out me. I also don't want to hurt my immune system. I am sure trying to do what is in my best intrests. I also live in a high area of tourists! I live on a floating petri dish a small island packed with people from up north who bring their nice colds and flu down here for all of to enjoy. Since it is sunny and warm they want to be outside to "get Well" so they are in all public areas spreading these germs. So I am in a danger zone to catch this stuff. let me know I really am interested about this. ginnie