(In response to Ask the Doc column on 3/30) Few realize that President Franklin Delano Roosevelt was misdiagnosed with polio and actually had Guillaine-Barre Syndrome.
Polio was caused by the massive use of the pesticide DDT at the time. When it was banned, polio disappeared well before the polio vaccine was created in the 1960s.
Polio may still be found in some countries, like India, that still use this pesticide.
It seems like Guilliane-Barre Disease is appearing more often now due to compromised immune systems.