A83: Mosquito-borne viral encephalitis

A83.5: California encephalitis

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.

There are various kinds of pathogens. You have been infected with viruses. These viruses occur in North America, for example. The viruses are for instance in the USA. The viruses are transmitted by mosquitoes. If you are infected with the viruses, the symptoms usually occur after several days.

It is possible to have only mild symptoms or none at all with the disease. You may also have severe headaches or a fever. You will potentially feel very weak or have to vomit. Sometimes you will behave differently than usual or lack proper awareness. It may also be the case for example that you have seizures or can no longer properly feel certain parts of your body. You may be very severely ill. Particular symptoms may remain for a long time.