Doog

I work in a pharmacy and you're mostly right about the flu shot, @danryckert. The shot contains a dead sample of the flu virus which your body is tricked into thinking is live and therefore makes the antibodies. It can not give you the flu BUT it can make your arm slightly sore... The best thing to do is get the shot in which ever arm you use more (if you're right handed get it in your right arm, left handed left arm) because you'll work out any soreness quicker by using the arm.

Also, getting a flu shot every year is recommended because the virus mutates rapidly(sometimes even within one flu season) and a shot one year will not protect you the next year.

TLDR: The flu sucks and will probably be the end of humanity.