Me personally? Not an awful lot. However, the greater population want to know why some people are so frightened of the vaccine that they turn to quack web sites that the KNOW spread fake news, then dangerously repeat their bile wherever they can.Why do care so much about this?
By asking a typically frightened liar certain questions, one can find out whether its just their prejudice or whether it applies to all medicines.
All medicines are new. They are developed frequently.