Thank you everybody. I knew i would get good advice from gransnetters. 
Elegran thank you for the comparison. I hadn't seen that one. There was never any doubt that she would have the vaccine as the benefits far outweigh the possible side effects, but I thought it better to tell my daughter what I had found.
I am visiting them next weekend so will see how she is then. But when I'm around she is always just lovely!
Thank you all.
Are You Finding the Hot Weather is Making you Short Tempered?

