"Polio" persists to this day under new names: Acute flaccid paralysis, aseptic meningitis, Guillaume Barre Syndrome, etc. etc. Viruses such as EV D-68 are paralysing people, dooming them to modernised iron lungs, called "respirators." Why don't we hear much about these? There isn't a vaccine marketing machine instilling panic over them, herding people towards the syringe... yet.