Not everyone wants IPV; opposition gears up.
D002675:Child, Preschool; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D011054:Poliovirus Vaccine, Inactivated; D011055:Poliovirus Vaccine, Oral; D014481:United States; D014611:Vaccination / Q000331:legislation & jurisprudence / Q000592:standards*
D011054:Poliovirus Vaccine, Inactivated; D011055:Poliovirus Vaccine, Oral