It takes 5 to 15 days after the bite of an infected mosquito to develop symptoms of<unk> V disease. Symptoms include nausea, headache, vomiting in milder cases and seizures, coma, paralysis and permanent brain damage in severe cases.<unk>  encephalitis initially presents as a nonspecific summertime illness with fever, headache, nausea, vomiting and lethargy. Severe disease occurs most commonly in children under the age of 16 and is characterized by seizures, coma, paralysis, and a variety of neurological sequelae after recovery. Death from<unk>  encephalitis occurs in less than 1% of clinical cases. In many clinical settings, pediatric cases presenting with CNS involvement are routinely screened for herpes or enteroviral causes. Since there is no specific treatment for<unk>  encephalitis, physicians often do not request the tests required to specifically identify<unk>  virus, and the cases are reported as aseptic meningitis or viral encephalitis of unknown cause. As with many infections, the very young, the very old and the immunocompromised are at a higher risk of developing severe symptoms.
La Crosse encephalitis
Saint Louis encephalitis
Rasmussen's encephalitis
Powassan encephalitis
Eastern equine encephalitis
Japanese encephalitis
Sappinia amoebic encephalitis
Tick-borne encephalitis