SBV: cases emerge in cattle on farms that previously had cases in sheep.
D000818:Animals; D000829:Animals, Domestic; D002044:Bunyaviridae Infections / Q000453:epidemiology / Q000635:transmission / Q000662:veterinary*; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000635:transmission; D016851:Orthobunyavirus; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology / Q000635:transmission