The lack of infectivity to cattle of a strain of Trypanosoma simiae transmitted by Glossina morsitans and G. tachinoides.
D000818:Animals; D001188:Artiodactyla; D002417:Cattle; D007303:Insect Vectors; D009549:Nigeria; D012756:Sheep; D012757:Sheep Diseases / Q000382:microbiology; D013552:Swine; D013553:Swine Diseases / Q000382:microbiology; D014345:Trypanosoma / Q000145:classification / Q000254:growth & development / Q000472:pathogenicity*; D014352:Trypanosomiasis / Q000097:blood / Q000662:veterinary; D014354:Trypanosomiasis, Bovine; D014370:Tsetse Flies