title: NEW METHOD OF PREPARING IMMUNIZING ANTIGENS FOR THE PRODUCTION OF ANTI-M SERA AGAINST CERTAIN SEROTYPES OF GROUP A STREPTOCOCCI.
mesh_terms: D000818:Animals; D000906:Antibodies; D000941:Antigens; D007106:Immune Sera; D011233:Precipitin Tests; D011817:Rabbits; D012106:Research; D065288:Serogroup; D013291:Streptococcus; D013297:Streptococcus pyogenes; D014611:Vaccination
chemical_list: D000906:Antibodies; D000941:Antigens; D007106:Immune Sera
keywords: ANTIBODIES; ANTIGENS; EXPERIMENTAL LAB STUDY; IMMUNE SERUMS; PRECIPITIN TESTS; RABBITS; STREPTOCOCCUS