Change of diet. Rabies acts like a stomach virus and causes cramping and pain. Rabid animal will avoid food and water because it hurts to put anything in their stomachs.
Personality change. Most animals in pain will turn more aggressive; however, some will become more personable, like a child wanting its mother.
Paralysis. Since rabies travels up the spine, it can cause problems around the hips of the animal. When this happens, the animal will stagger and fall.
Foaming at the mouth. The virus does not foam when it contacts air. The foaming is caused by the spasm of muscles in the jaw, causing the animal to constantly chew. The foam is simply the saliva being worked into a froth by the chewing motion. The foaming is also one of the last signs of rabies that may appear before the animal dies. There are many things that an animal can pick up with its mouth that will make it foam. If the jaw is not constantly chewing involuntarily, it is probably not an indication of rabies.
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