Polio vaccines and polioviruses.
D006801:Humans; D017955:Poliovirus / Q000254:growth & development*; D011054:Poliovirus Vaccine, Inactivated / Q000009:adverse effects*; D014613:Vaccines, Attenuated / Q000009:adverse effects
D011054:Poliovirus Vaccine, Inactivated; D014613:Vaccines, Attenuated