Polio due to improved sanitation
[Allopathic Rationalization. In Allopath Land polio can't possibly be anything to do with mass DPT vaccination or DDT, it is purely due to improved sanitation. Common sense would tell you improving sanitation would reduce disease, just like it eliminated smallpox.]
Examples:
The paralytic polio epidemic in the U.S. has been shown to have actually been CAUSED by improved sanitation. Recommended: http://www.scq.ubc.ca/polio.pdf--Rich
During those years many people still did not have access to proper sanitation. Most polio epidemics in the 1900's were in poor and rural areas - areas which even today don't necessarily have proper sanitation.--Bryan