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Viral encephalitis
This document discusses viral encephalitis, including: - Encephalitis is inflammation of the brain parenchyma that can cause altered mental status, motor/sensory deficits, and seizures. It is differentiated from meningitis which involves the meninges. - Viral encephalitis can be primary, caused by direct viral invasion of the brain, or postinfectious. Common viruses include HSV, VZV, influenza, and enteroviruses. - Clinical manifestations include fever, headache, vomiting, altered mental status, and focal neurological abnormalities. Investigations include imaging, EEG, and CSF analysis to identify the causative virus. Treatment involves supportive care and antivirals for certain
