Epidemiology of Trypanosoma evansi and Trypanosoma vivax in domestic animals from selected districts of Tigray and Afar regions, Northern Ethiopia

摘要: African animal trypanosomosis, transmitted cyclically by tsetse flies or mechanically other biting flies, causes serious inflictions to livestock health. This study investigates the extent of non-tsetse trypanosomosis (NTTAT) Trypanosoma (T.) evansi and T. vivax in domestic animals tsetse-free regions Northern Ethiopia, Afar Tigray. A cross sectional was conducted on 754 dromedary camels, 493 cattle, 264 goats, 181 sheep, 84 donkeys, 25 horses 10 mules. The microhaematocrit centrifugation technique used as parasitological test. Plasma collected for serodiagnosis with CATT/T.evansi RoTat 1.2 immune trypanolysis (ITL) while buffy coat specimens were molecular diagnosis type specific PCR, B EVAB PCR TvPRAC PCR. prevalence 4.7% Tigray 2.7% significantly higher (z = 2.53, p = 0.011) cattle (7.3%) than hosts. Seroprevalence 24.6% 13.9% (z = 9.39, p < 0.001) (37.3%) On hand, seroprevalence assessed ITL only 1.9% suggesting reaction trypanosome infections. Molecular 8.0% varied from 28.0% 2.2% sheep. It also (p < 0.001) camel (11.7%) (6.1%), donkey (6%), goat (3.8%), sheep (2.2%). Four camels positive B. 3.0% similar Afar. didn’t differ among host species except that it not detected NTTAT caused evansi, is an important threat health For first time, we confirm presence Ethiopian camels. Unexplained results obtained current diagnostic tests bovines warrant particular efforts isolate characterise strains circulate Ethiopia.