Vaccines did not prevent mortality, rather now causing deaths.

Infectious diseases declined steadily for decades prior to vaccinations. 

Death rate for measles, as per the CDC, through 1960. Guess what year the measles vaccine was introduced? (Hint: 1963.)

See trends for other diseases, pre-vaccine.

[CDC charts start around page 80.]

Trends in Infectious Disease Mortality in the United States During the 20th Century (JAMA):

United States Disease Death Rates:

U.S. doctors report thousands of serious vaccine reactions each year including hundreds of deaths and permanent disabilities. (CDC is source)