Rabies is a disease that attacks the central nervous system (brain and spinal cord) of animals and people. This disease is caused by a virus and is almost always fatal. In people, symptoms of rabies are rapidly progressive and include anxiety, confusion, hallucinations, and the inability to swallow. Rabies in humans is rare in the U.S., but rabies in certain animals, especially wildlife, is common throughout the country. Learn more by viewing the Rabies Informational Guide (PDF).