Prevalenceultra-structureand genotypes of hydatid cysts

Cystic echinococcosis is the condition of infection by the adult or metacestoda of the cestode belonging to genus Echinococcus Rudolphi 1801 and cause the cystic hydatid disease in livestock and human by the larval stage of Echinococcus granulosus which requires two vertebrate hosts final host mainly dogs and intermediate hosts as sheep camel cattle and accidentally human to complete the life cycle (Beck and Davies 1981; Thompson 1986; Schantz 1991; Tashani et al. 2002; Khalifa et al. 2004).