title: Poliomyelitis: concerns for polio-free countries.
authors.forename: Subhash C
authors.initials: SC
authors.lastname: Arya
authors.forename: Nirmala
authors.initials: N
authors.lastname: Agarwal
mesh_terms: D006801:Humans; D011051:Poliomyelitis / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral / Q000276:immunology; D012722:Sewage / Q000821:virology
chemical_list: D011055:Poliovirus Vaccine, Oral; D012722:Sewage