What a shame to hear of your plight and to the extent it has turned into. You will be in my prayers as well. Keep us posted on how it turns out. I would feel really angry if my kids were in danger of having toxic vaccinations. And to compound the problem it seems as if the situation is helpless. I would just gather the facts and statistics and present them in course. You can find it all on the internet.
Stick to your values and high standards and don't move from that position. Don't attack the person (your wife or doctors) but attack the problem and state your concerns and no matter what happens you can't be faulted for that.
If worse comes to worse...you have all the tools right here in MH's program for your son to follow at the proper time. Whether it's ten or twenty years from now.