Elvis and Vaccines

‘I want to remain apolitical because I don’t think it’s right for me to use my celebrity and fame to persuade other people' Elvis quoted in this piece by Piers Morgan
Elvis is credited with saving thousands of lives by helping to advertise the new Salk Polio vaccine

It could be argued that vaccinations are medical and scientific and not political. But if you argue this you can't then bring science and vaccines into politics.