title: Two cases of vaccine-associated paralytic poliomyelitis linked in time and place.
mesh_terms: D004739:England; D005260:Female; D006801:Humans; D007223:Infant; D011051:Poliomyelitis / Q000453:epidemiology* / Q000209:etiology; D011055:Poliovirus Vaccine, Oral / Q000009:adverse effects*; D013029:Space-Time Clustering
chemical_list: D011055:Poliovirus Vaccine, Oral