Saying so long to polio.
Gibbons
A
A
D002489:Central America; D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology*; D017955:Poliovirus / Q000302:isolation & purification; D011054:Poliovirus Vaccine, Inactivated; D013020:South America
D011054:Poliovirus Vaccine, Inactivated