title: Infectivity and virulence of Trypanosoma (Trypanozoon) brucei for mice. IV. Dissociation of virulence and variable antigen type in relation to pleomorphism.
mesh_terms: D000818:Animals; D000941:Antigens; D001769:Blood / Q000469:parasitology; D005260:Female; D051379:Mice; D012376:Rodent Diseases / Q000209:etiology* / Q000469:parasitology; D014346:Trypanosoma brucei brucei / Q000254:growth & development / Q000276:immunology / Q000472:pathogenicity*; D014353:Trypanosomiasis, African / Q000209:etiology / Q000469:parasitology / Q000662:veterinary*; D014774:Virulence
chemical_list: D000941:Antigens