Vaccines did not lead to a decrease in diseases.
Polio increased after vaccinations
Historical perspective
Testimony:
"Prior to the introduction of polio vaccinations
in Germany, anyone was counted as having polio, even if they only had
the virus in their feces. It is known, he goes on, that there are people
who are healthy but who evacuate polio viruses when they go to the
bathroom.
Based on this criteria, the number of cases was approximately 4,000 per year. After the introduction of the vaccine, statistics included only those polio cases of people who were paralyzed for at least six weeks." —Gerhard Buchwald, MD
"Polio has not been eradicated by vaccination, it is lurking behind a redefinition and new diagnostic names like viral or aseptic meningitis. According to one of the 1997 issues of the MMWR, there are some 30,000 to 50,000 cases of viral meningitis per year in the United States alone.
That's where all those 30,000 - 50,000 cases of polio disappeared after the introduction of mass vaccination" —Viera Scheibner, PhD
http://www.informedchoice.info/polio.html
Death rates from infectious diseases
Death rates from Diphtheria
Figure 6. Death rates from smallpox and scarlet fever in England.
Another interesting point is that the smallpox disease cycle of decreased deaths and epidemics appears closely tied to the scarlet fever disease cycle. Just as there was a large decrease in scarlet fever deaths after 1885, there was simultaneously a decrease in smallpox deaths. It is important to remember that death from scarlet fever, which was the worst of infectious diseases in that era, was eliminated without any vaccination program.