As of 1977, there were 250,000 people in the US who had been paralyzed by polio.
In 1952 there was a polio epidemic in the US. 3000 died and 21,000 were paralyzed.
Because:
Indeed. They all agree - the reason you do not fear polio is that other people have eradicated it for you via public vaccination programs. And fortunately, people like Lucija Tomljenović have failed to stop them. If someone like her had succeeded in stopping polio vaccinations decades ago, you just might be typing this post using a stick in your mouth.