Patient: convulsions, September ’08. It was cured. But after half a year, it seems to have been committed. What kind of help do you want? Laboratory and examination results: All aspects were examined. All normal. The prognosis is also related to the classification of the virus: the prognosis of viral encephalitis is related to the extent of the lesion and the severity of the disease. The prognosis is often good when the brain lesions are limited and do not invade the “life center” and the disease is mild. If the coma lasts for a long time, or if there are frequent convulsions, the prognosis is poorer because of the increase in cerebral hypoxia and pathological changes, which can easily lead to neurological and psychiatric sequelae. The prognosis for encephalitis due to certain viruses is poor, with a high mortality rate in patients with measles encephalitis and subacute sclerosing holencephalitis, and a mortality rate of more than 30% in children with herpes simplex virus encephalitis, with sequelae in about half of the survivors. Herpes simplex virus infection of the fetus via the placenta can result in cerebellar malformations and hydrocephalic anencephaly. Congenital infections with cytomegalovirus and rubella virus invade multiple organs, and when they invade the brain, their prognosis is worse than that of acquired encephalitis. CNS infections due to congenital cytomegalovirus can cause cerebral palsy, cerebellar malformations, mental retardation, motor deficits, and occasionally hydrocephalus. Children with congenital rubella encephalitis may develop cerebellar malformations, deafness, and even progressive mental and motor disorders. Rabies encephalitis has the highest morbidity and mortality rate, which is almost 100%. The prognosis for patients with lymphocytic choroid plexus meningitis, infectious mononucleosis complicated by encephalitis, echovirus encephalitis, coxsackie virus encephalitis, and mumps virus encephalitis is better, with most patients gradually recovering. Some children with echovirus encephalitis and coxsackievirus encephalitis may develop limb paralysis, but rarely have sequelae. Very few children with mumps encephalitis may have hemiplegia or even die from brain herniation.