title: Serological studies on Actinobacillus actinomycetem-comitans.
abstract: One hundred strains of Actinobacillus actinomycetem-comitans were examined serologically by determining their agglutination reactions with six absorbed antisera. Twenty-four reaction patterns were found, and the results were reproducible. The agglutinating antigens were heat-stable. Precipitation reactions were also studied by means of the Ouchterlony agar-gel diffusion technique with Fuller and acetone extracts. The agglutination test was considered preferable for epidemiological and ecological investigations on A. actinomycetem-comitans.
mesh_terms: D000096:Acetone; D000188:Actinobacillus / Q000145:classification / Q000276:immunology*; D000362:Agar; D000372:Agglutination Tests; D000818:Animals; D000941:Antigens / Q000032:analysis*; D000942:Antigens, Bacterial / Q000032:analysis; D005559:Formamides; D006358:Hot Temperature; D007106:Immune Sera; D005779:Immunodiffusion; D011817:Rabbits / Q000276:immunology; D012703:Serotyping
chemical_list: D000941:Antigens; D000942:Antigens, Bacterial; D005559:Formamides; D007106:Immune Sera; D000096:Acetone; D000362:Agar