meningoencephalitis true doid/symp duplicate Meningoencephalitis is a nervous system symptom characterized as an inflammation of the brain and meninges. The commonest etiologies for bacterial meningitis are meningococus, pneumococcus and haemophilus influenza B. Acute seizures may occur related to fever or to complications such as subdural collections, cerebritis or cerebral infarction. Immunization programs may reduce the incidence of specific bacterial meningitides. https://www.ilae.org/guidelines/definition-and-classification SYMP:0000089 symptoms bacterial meningitis or meningoencephalitis infectious etiology