Abstract:
A survey was conducted to determine the prevalence of Trypanosoma vivax infection in cattle in the Blue Nile State. A total of 1096 blood samples were collected during dry season (March to June 2003) and 694 samples during rainy season (July to December2003). For Identification of the parasite hematocrit centrifugation technique, wet blood film, thin and thick blood stained smears were applied. The prevalence during the dry season ranged between 6.5 to 2.2% compared with 6.3 to 1.4 % during the rainy season. In conclusion, the transmission of the parasite can be by the insect vectors existing in the study area also they increased in dry season.
