Animals Involved
Cattle, swine, sheep, goats, other cloven hoofed animals (Artiodactyla), a few mammals in other orders
Known Distributions
Asia, Africa, Middle East, South America
Probable Means of Spreading
Contact exposure, often in laboratories or other high concentrations of virus
Clinical Manifestations in People
People may become temporary nasal carriers of virus but do not usually become ill; mild influenza like disease with vesicular lesions occurs very rarely