You trusted SOMEONE in order to get the shot. No one takes an experimental injection without believing what someone else has said about it.You did not identify anything my friend. YOU ASSUME.
I do not trust ANYONE. How many times do I have to say that before you will open you mind and believe it?
My sister's Dr warned her about getting it. Other Drs have recommended it to their patients, but BOTH sets got their information to make that decision from SOMEWHERE.