This study was conducted to estimate the infection rate of Hydatidosis caused by Echinococcus granulosus in cattle and sheep as intermediate hosts in slaughter houses of Khartoum State. An abattoir survey was carried out in 849 cattle and 3850 sheep slaughtered in the study area during January 2010 to June 2010. The highest infection rate (2.8%), was found in cattle followed by sheep (1.4%). The most affected organs in cattle were the lung and liver (37.5% for each). In sheep, the liver was the most infected organ (65.2%), followed by mesentery (21.7%). The records of abattoirs in Khartoum state indicated that Hydatidosis was one of the most frequently encountered parasites during the last six months in Khartoum State.
