Bovine ephemeral fever (BEF) is a disabling febrile infection of cattle and water buffalo caused by bovine ephemeral fever virus, which is widespread in many countries and areas of Asia, Africa and Australia.

• 牛流行热(Bovine ephemeral fever，BEF)是由牛流行热病毒(Bovine ephemeral fever virus，BEFV)引起的牛和水牛的急性热性传染病。