title: Variation in the test responses of clone -- derived Trypanosoma (Trypanozoon) brucei brucei and T.(T).b. rhodesiense relapse antigenic variants, examined by a modified blood incubation infectivity test and its possible significance in Rhodesian sleeping sickness transmission.
mesh_terms: D000818:Animals; D004197:Disease Reservoirs; D006801:Humans; D051379:Mice; D014345:Trypanosoma / Q000472:pathogenicity*; D014346:Trypanosoma brucei brucei / Q000472:pathogenicity; D014353:Trypanosomiasis, African / Q000209:etiology / Q000635:transmission*; D015030:Zimbabwe