B00.4: Herpesviral encephalitis

You have been infected with herpes viruses. As a result, you have an inflammation in your brain.

There are various kinds of herpes viruses. You have been infected with herpes simplex viruses. A person can be infected with herpes viruses via saliva, for example, or through sex. Some of the viruses remain in your body throughout your life. For example, if you are stressed or the defense system is weakened, the viruses can cause symptoms again.

The viruses have caused your brain, spinal cord and brain linings to become inflamed. On the outside of the brain and spinal cord there are three thin meninges (linings). A tough meninx, the dura mater, is on the outside. Below that are two soft meninges. The spinal cord is located in the spinal column. The spinal cord is made up of nerve fibers. The brain uses the nerve fibers to exchange information with the organs, skin and muscles.

When the brain, spinal cord or brain linings are inflamed, it can cause a number of symptoms. The neck is often stiff. You may find it difficult to tolerate bright light and loud noises. Sometimes you may also feel nauseated and feel like you have to vomit. You may behave or think in ways that are not normal. You may sometimes no longer be able to control your own movements. Potentially, you will no longer be able to move certain parts of your body. Seizures are also possible or you may lose consciousness. The viruses will often make you feel very weak, and you may have a fever and headaches. The viruses can make you severely ill.