Quote:
Originally Posted by Sliver
Not trying to be a dick but I think that's fairly common knowledge. That's why you get an annual flu vaccine.
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I actually found it quite interesting that when you body fights off the Flu on it's own the immunity lasts 18+ years longer than getting a vaccine. I had done a lot of reading on the subject and this was the first I had heard of how long the immune response lasts between the 2.
