The wind will blow saliva from their mouths into the air and then deposit it on the grass and hay, and it gets eaten. They can also get it from drinking out of the same trough. Dr. Davis explained how people can carry the virus. The virus can be carried by the wind, and then it lands on your clothes, or your hair. You can step into mud or animal dung and carry it on your shoes.
Cars are a big problem because they go through mud and splatter it into the wind.
Eating infected meat is also a problem, particularly undercooked beef. Humans can pass the virus through waste, where it comes into contact with insects, rodents, and birds. Once a person leaves an infected area, the body's own defenses will rid itself of the virus in about five days. If this still sounds like exaggeration, just ask an American livestock owner. FMD has become such a serious threat that ranchers have taken proactive measures to prevent its infiltration.