title: Studies on the epidemiology of Rift Valley Fever.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000276:immunology; D005260:Female; D008297:Male; D011247:Pregnancy; D012295:Rift Valley Fever / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology* / Q000276:immunology