Do the flu injection work?
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Do the flu injection work?
Quite a few people need to receive the vaccination to prevent one case of flu - look up NNT - Number Needed to Treat. You just hope you are that one. It is inactivated - dead - so you cannot get flu from it, though at this time of year there are so many bugs around (and probably more importantly collections of symptoms that are attributed to bugs) that many do feel they have got flu from it. I have the vaccination every year. Once I had a slightly sore upper arm - no other side effects.