things to avoid pesticide, cfl light bulbs, tsa body scanners, paint with voc's etc..
vaccines do not fall into that category(IMO)
I know a lot of people wrongly fear vaccines, you should not.
p.s. I also believe that the cholesterol lowering drugs are very unhealthy and think in 25 years the cholesterol fear will be looked back at and laughed at. (that is an entire other subject)