Rabies
The central nervous system is made up of the brain and spinal cord. The brain functions to receive nerve impulses from the spinal cord and cranial nerves. The spinal cord contains the nerves that carry messages between the brain and the body. The rabies virus spreads through the nerves of the brain and spinal cord first causing flu-like symptoms such as fever and malaise. As the disease advances it causes anxiety, confusion, brain dysfunction, progressing to hallucinations, delirium, and insomnia. If left untreated, rabies is nearly always fatal.
Update Date: 6/9/2008 Updated by: John E. Duldner, Jr., MD, MS, Assistant Professor of Emergency Medicine Director of Research, Department of Emergency Medicine Akron General Medical Center and Northeastern Ohio Universities College of Medicine. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.