Vaccine safety data is often fabricated.
Immunizing children is harmful and this fact is covered up.
Pharmaceutical companies cover up the dangers of vaccines.
People are deceived about vaccine efficacy.
Vaccine efficacy data is often fabricated.
People are deceived about vaccine safety.
The government is trying to cover up the link between vaccines and autism.
Not in every case, but I would certainly argue it could have happened.
Is it deceiving to argue something is "safe" when the person receiving the advice is not educated enough in vaccines or statistics to make a truly educated decision? A truthful description about the safety of any medicine involves a deep understanding of statistics, medical testing and general risk calculation.