So here you have a Doctor trying to be Lawyer. There is a chance, however small, of a bad reaction to the vaccine. The Doctor knows this, therefore he cannot gi

So here you have a Doctor trying to be Lawyer. There is a chance, however small, of a bad reaction to the vaccine. The Doctor knows this, therefore he cannot give this woman her 100% guarantee that nothing will go wrong because of the vaccination. He knows that if he tells this woman it will be OK and nothing will happen, that if something DOES happen he will be sued for medical malpractice.