Just so everyone knows manufacturers are legally obliged to make sure every patient/carer can have a leaflet - pharmacists/nurses etc who refuse to provide them just need to be reminded to read the Medicines Act - it usually works.
Vaccines (and I am pro vaccination, I do believe the drop in infant mortality data from the 1930's onwards etc) are medicines and any medicine that works may have 1) common but mild side effects and 2) rare but deeply upsetting adverse effects.
For a vaccine to be licenced the impact on the community of significantly reducing/eliminating the disease must massively outway the known risks. The system for tracking safety of a vaccine or medicine when used in the mass population is vastly better than just 10 years ago. Manufacturers and regulators are constantly learning to improve the products.
Are vaccines 100% safe - no, no one can say this.
Is the use of vaccines effective to reduce infant mortality or morbidity - yes.
Did I take the H1N1 vaccine - yes, but only the one used on millions, not the other one only used in a few thousand! Having seen a woman in intensive care last christmas 20 weeks pregnant with twin go from OK, to a pressurised breathing hood, to incubation to ECMO to death - yup I damn well did have it before getting pregnant.
I can't get my head around anyone thinking that vaccines can be licenced if they are more dangerous than the diseases they seek to reduce/eliminate. I repeat though, I am not saying they are adverse effect free, just that these are outweighed by the gains to society.