I think you are right. I think that problem is that our environment is getting so toxic, and our foods so depleted, that each generation is getting weaker. So things like vaccines can push young children over the edge... though other factors can as well. My son was born allergic to just about all foods, literally. He never was vaccinated, so I can't blame vaccines. But, I have to think that if I had vaccinated him, it would have been a real disaster.