title: Streptococcal red-cell-sensitizing antigens.
mesh_terms: D000941:Antigens; D006384:Hemagglutination; D005779:Immunodiffusion; D066298:In Vitro Techniques; D011233:Precipitin Tests; D012141:Respiratory Tract Infections / Q000209:etiology; D013291:Streptococcus / Q000276:immunology*; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D000941:Antigens