viral encephalitis true CSP2005:2042-4896 NCI:C34576 epidemic encephalitis disease_ontology SNOMEDCT_US_2018_03_01:68197003 Encephalitis is a recognized complication of infections with a number of viruses. Herpes simplex virus type 1 is the most common viral cause. Affected individuals present with acute encephalopathy and seizures, epilepsy develops in around 50% of cases. Other less common etiologies for viral encephalitis include human herpes virus 6 (associated with acute limbic encephalitis and febrile status epilepticus), influenza B, varicella, measles, mumps and rubella viruses. SNOMEDCT_US_2018_03_01:20411005 UMLS_CUI:C0014055 DOID:10839 MESH:D004671 An encephalitis that involves inflammation of the brain caused by viral infection. DOID:646 DOID:10248 DOID:10249 infectious etiology