Letter: Poliomyelitis today.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000914:Antibodies, Viral / Q000032:analysis*; D006801:Humans; D011051:Poliomyelitis / Q000276:immunology*; D017955:Poliovirus / Q000276:immunology*; D006113:United Kingdom
D000914:Antibodies, Viral