If vaccines are the only way to overcome diseases like smallpox and measles, then where did scarlet fever go? A vaccine was never made for it. Scarlet fever had a high mortality rate and was concerning enough that people would quarantine if they had it. The cure for scarlet fever was the same cure for most of the diseases that vaccine manufacturers claim to have eradicated. Improvement in sanitation of water, food, hospitals, etc are the real reason disease has declined. When the water supply is mixed with human/animal waste and urine, people are going to get sick consuming that. When butchers ground up rotten and rancid meat with fresh meat to save money, people will get sick. When you live in an apartment with no windows and no fresh air, people will get sick. Health will improve once we get the damn government and its lies out of medicine.