L.S.
I hope you will reconsider not immunizing your little one. Regardless of the research, to me it seems a scary thought to depend on the "herd immunity" of human beings around you to protect your child from catching a dread disease. There are many unimmunized people who come here from countries where immunization isn't widespread, and that herd immunity won't protect your child when coughed or sneezed on in a public place by one of these individuals who recently crossed the border or flew in.
If my little one contracted polio and I could have prevented it . . .
I hope you'll reconsider.