I've never gotten a flu shot... ever. And I work in a large university sometimes touching 10 or more public keyboards a day. I've only had the flu once in my life. I'm about the furthest thing from a germ free person... I never wash my coffee cup, only wash my hands when I piss on them, share food with the dog, etc....
It's not a popular belief, but I think people are a little too germ free these days. These instant hand sanitizers kill 99% of germs and bacteria, but that other 1% that survives can build an immunity to the sanitizers that could harm you worse than if you let your body deal with it normally like it's supposed to. Same with parents shooting their kids up with antibiotics all the time. Pharmaceuticals are making a killing selling to parents that are scared of their kids getting sick.
Not to say there aren't good uses for it, but using it as a preventive measure year after year is just making your body more reliant on the shot and less capable of fighting it off on it's own.
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