I know a few folks who are otherwise pretty clear headed, but who are anti-vaxxers. Yes, I know, quite a bit of cognitive dissonance there..
Anyway, there are a few arguments I hear them make that have a touch of veracity, that we could take care of:
1 - They question if the CDC is truly open and uncorrupted.
2 - They question if Big Pharma is truly open and uncorrupted.
So it could be that if we could create some truly transparent oversight, we could at least speak to some anti-vaxxers.
The other thing I've noticed about this topic is that it's become EXCEEDINGLY polarizing. I'm mostly pro-vaccines, but I do wonder why the US's schedule is bigger than Europe's schedule. What I've experienced is that when I even ask that question, I'm branded an anti-vaxxer!