Poliomyelitis vaccination.
D004196:Disease Outbreaks / Q000517:prevention & control; D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011054:Poliovirus Vaccine, Inactivated; D011055:Poliovirus Vaccine, Oral
D011054:Poliovirus Vaccine, Inactivated; D011055:Poliovirus Vaccine, Oral