The oral sabin (live)polio vaccine targets 3 strains of polio producing enterovirus.
Unfortunately about 3 -4 polio cases /yr were attributed to the live opv. Today it is used mostly in the regions where it persists. The oral prep is easier to give to large populations in a mass event. I would avoid this vaccine if you are on any one of many immune treatment meds or chemo, clear it with your pcp.