Okay, I'll be the first negative response. Don't get one. If you had a high risk of death from flu, I'd give a different answer.

The flu vaccine is almost junk science (I said almost). Epidemiologists make an educated guess each year as to what strain of flue will be most prevalent. Most flu originates in birds and is transmitted to humans. The epidemiologists then decide which strain will make the jump. Their record has been about 50% over the years. In my opinion, that is not nearly enough to justify the discomfort, etc. if you do not have a high risk of getting seriously ill.