History shows us that vaccines did NOT eradicate the diseases that plagued humanity. That is a common misconception -- in actual fact, it was better sanitation and hygiene in the cities that prevented the spread of diseases. These charts, from official sources, show us that vaccines (1) were not responsible, and are not necessary, for eliminating infectious diseases, (2) are not effective, and (3) are dangerous.
Source Proof That Vaccines Didn't Save Us | Gene's Green Book
There has been threads about vaccines before, but I thought I'll put this one up as the link above provides charts from sources such as the medical journal etc.