title: Prevalence of hydatid disease in Syria and Jordan: preliminary results.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D004443:Echinococcosis / Q000453:epidemiology / Q000662:veterinary*; D006041:Goats; D007597:Jordan; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D013593:Syria