I decided to do my research on the effectiveness of the vaccination for polio and thats exactly what i typed in google, which led me to http://www.immunizationinfo.org/vaccines/polio .
“The incidence of paralytic polio peaked in the U.S. in 1952 with 21,000 reported cases and numerous deaths. Following licensure of the Salk (inactivated) polio vaccine in 1955, the incidence of the disease fell dramatically. The disease was further reduced by the advent of the Sabin (oral) polio vaccine in 1961. The last cases of paralytic polio from natural poliovirus in the U.S. were in 1979, and the most recent case from outside the U.S. occurred in 1993.”
This claim helps us see how much the polio vaccine really can help out. Compared to 1952 there arent as many deaths now as there were then. The article says that polio has been eliminated from the US and the who western hemisphere because of the effective vaccine. The Sabin isnt expensive at all which is a good thing. This disease seems to be under control due to the vaccine, which proves that it is very effective!