Also there is some evidence that those who get the flu vaccine are more likely to get more serious forms of it later than those who do not get it at all.
http://articles.mercola.com/sites/articles/archive/2012/09/18/flu-shot-increases-flu-illness.aspx
I guess I am biased because I’m actually old enough to recall the government’s great Swine Flu Immunization Debacle of 1975. Several elderly people in my neighborhood actually died after getting the shot. Another developed Guillain-Barre Syndrome and suffered for many years.