title: [Human haptoglobin type and G-streptococci: a safe and unexpected relation].
abstract: By testing 167 human sera a surprising dimorphism could be found. All sera of the haptoglobin type hp 1-1 belong to the group with an anti-G streptococci titer in the range of 1:0 to 1:10 whereas sera of the types hp 2-1 and hp 2-2 do have titers in the range between 1:200 and 1:3200 or more. All tests are carried out in the double blind technique.
mesh_terms: D000017:ABO Blood-Group System; D000907:Antibodies, Bacterial; D005260:Female; D006242:Haptoglobins / Q000276:immunology*; D006801:Humans; D008297:Male; D012204:Rh-Hr Blood-Group System; D012737:Sex Factors; D013291:Streptococcus / Q000276:immunology*
chemical_list: D000017:ABO Blood-Group System; D000907:Antibodies, Bacterial; D006242:Haptoglobins; D012204:Rh-Hr Blood-Group System
vernacular_title: Menschlicher Haptoglobintyp und G-Streptokokken: Eine sichere und unerwartete Relation.