There is no cure for polio.
Once you contract it, the only question is how severe the damage will be, whether you wind up with a limp or spend the rest of your life on a ventilator. Or die.
The ONLY reason people might think polio has been cured is because of the tremendous success of the polio vaccination program.
And as I've noted before, many types of cancers are now considered treatable instead of automatically fatal if they're detected early enough .
Anti-vaxxers really are the worst of humanity.