title: [A seroepidemiological study on group A streptococci (author's transl)].
mesh_terms: D000293:Adolescent; D000328:Adult; D000907:Antibodies, Bacterial / Q000032:analysis; D002353:Carrier State / Q000453:epidemiology / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007564:Japan; D013290:Streptococcal Infections / Q000453:epidemiology / Q000276:immunology; D013297:Streptococcus pyogenes / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial