title: Antigenic analysis of virulent and avirulent strains of Trichomonas gallinae by gel diffusion methods.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000941:Antigens / Q000032:analysis*; D002999:Clone Cells; D010856:Columbidae; D005615:Freezing; D006241:Haptens; D007106:Immune Sera; D005779:Immunodiffusion; D008722:Methods; D011817:Rabbits / Q000276:immunology; D014244:Trichomonas / Q000145:classification / Q000276:immunology* / Q000472:pathogenicity; D014774:Virulence
chemical_list: D000941:Antigens; D006241:Haptens; D007106:Immune Sera