title: Cross-protection among serotypes of group A streptococci.
mesh_terms: D000372:Agglutination Tests; D000818:Animals; D000941:Antigens; D003429:Cross Reactions; D005921:Glomerulonephritis / Q000276:immunology; D006801:Humans; D007106:Immune Sera / Q000032:analysis; D005779:Immunodiffusion; D010587:Phagocytosis; D011233:Precipitin Tests; D011817:Rabbits; D012703:Serotyping; D013194:Staining and Labeling; D013290:Streptococcal Infections / Q000276:immunology; D013291:Streptococcus / Q000276:immunology* / Q000302:isolation & purification
chemical_list: D000941:Antigens; D007106:Immune Sera