Avoid contact with livestock or wildlife for 5 days after arrival in the United States. Extra precautionary measures should be taken by people traveling from farms in infected locales to visit or work on farms in the United States. It is advisable that employers or sponsors provide arriving travelers with a clean set of clothing that can be worn after the visitor showers and shampoos thoroughly. Visitor's traveling clothes should be laundered or dry cleaned immediately. It also affects sheep, goats, deer, and other cloven-hooved ruminants.
Horses are resistant.
Not contagious to humans, but can be spread by humans. Walt Disney Internet Group, ABC call inc.