Both cattle and chickens raised for meat are often fed the type of feed that transmits the virus that causes the disease.
用于食用的牛和鸡经常被喂食会传播病毒的饲料，该病毒引起这种疾病。
2
RVF is able to infect many species of animals causing severe disease in domesticated animals including cattle, sheep, camels and goats.
裂谷热能够感染许多动物种类，导致包括牛、羊、骆驼和山羊在内的家养动物染患严重疾病。
3
However, the Animal and Plant Health Inspection Service (APHIS) has stated that Bison are the "likely source" of the spread of the disease in cattle in Wyoming and North Dakota.