If no vaccination then the cost of vaccine injury could rise to 3 trillion? I'm sure that is not what you meant, I'm guessing you meant the cost of permanent injury from what are called "vaccine preventable diseases" and I completely disagree with you.
Most are harmless. Most are misunderstood. Measles and Chicken pox come to mind first. And everyone likes to whip out polio, too bad polio is a man made disease and very poorly understood.
Mortality was down to almost zero for most of these harmless childhood illnesses before the vaccines came out. And we are learning today about the protection that building immunity naturally to these childhood illnesses provided... cancer being the main one. Chicken pox has been show to protect against the worst gliomas --and guess what is on the rise? Yep. Gliomas. We are messing with mother nature. I wish the best of luck in your studies and research on the topic. Start with Pub Med.