Rabies is a highly fatal viral disease that occurs in swine bitten by an infected carrier animal. The incubation period is quite variable: nine days to four months. Clinical signs are similar to those described in other species and include sudden onset of incoordination, prostration, chewing movements, excessive salivation, inability to squeal, muscular spasms and tremors, and perhaps twitching of the nose. Death usually occurs within 72 to 96 hours of onset of clinical signs. Furious type rabies seldom occurs in swine. There are usually no gross lesions. Microscopic lesions are typical for viral encephalitis but are quite variable and inclusion bodies are often not present. Diagnosis is confirmed through fluorescent antibody staining on brain sections.