When the doctor says "this procedure will reduce future...

...incidence of disease"...

I ask - "is it harmless? ", and,
"Is it pleasant to receive?"

If not, I say no.

After all, I don't need protection
from any disease anyway!

That's what the immune system is for...
(And I can guarantee it is far more
  intelligent in doing so-
than any procedure mankind can invent!)

And I'm in control of my immune systems performance
By what I do in my life
And how well I manage my vitality levels
Which power all systems of the body!