Rabies is a viral disease that affects the central nervous system, primarily transmitted through the bite of an infected animal. The virus is found in the saliva of animals such as dogs, bats, and raccoons. Once symptoms appear, rabies is almost always fatal, making prevention through vaccination and prompt medical treatment essential after potential exposure. Symptoms of rabies can include fever, headache, and confusion, progressing to more severe issues like paralysis and hallucinations. The disease typically takes weeks to months to manifest after exposure. Vaccination for pets and avoiding contact with wild animals are key strategies in preventing rabies transmission.