Vaccination is considered one of the most important public health achievements of the 20th century and continues to offer great promise in the 21st century. Vaccines save lives and improve the quality of life by preventing serious infectious diseases and their consequences. However, the benefits of vaccination are not realized equally across the U.S. population. Adult vaccination rates remain low in the United States, and significant racial and ethnic disparities also exist. 
Probably, nothing is more blatantly ridiculous and scientifically incorrect than the very first sentence. Infectious disease after disease waned to extremely low levels of almost no infection and contraction rates numerous years before 20th century vaccines were even invented. This website contains more than two dozen charts and graphs indicating those documented historical facts.