title: Vaccine-derived polioviruses: is it time to stop using the word "rare"?
authors.forename: Walter
authors.initials: W
authors.lastname: Dowdle
authors.forename: Olen
authors.initials: O
authors.lastname: Kew
mesh_terms: D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology / Q000276:immunology* / Q000517:prevention & control; D023321:Poliovirus Vaccines; D014611:Vaccination / Q000706:statistics & numerical data / Q000639:trends
chemical_list: D023321:Poliovirus Vaccines