title: Studies on Trypanosoma vivax: infectivity and serial maintenance of natural bovine isolates in mice.
mesh_terms: D000818:Animals; D001769:Blood / Q000469:parasitology; D002417:Cattle; D051379:Mice; D012008:Recurrence; D014345:Trypanosoma / Q000254:growth & development / Q000472:pathogenicity*; D014354:Trypanosomiasis, Bovine / Q000469:parasitology*; D014774:Virulence