Altered mental status
Aphasia
Ataxia
Hemiparesis
Hemiplegia and visual field disturbances
Seizure
Cranial nerve palsies (rare)
Cervical spine involvement (rare)
Progressive multifocal leukoencephalopathy
Hypoxic encephalopathy
Primary CNS lymphoma
Acute toxic-metabolic encephalopathy 
Drug induced aseptic meningitis
Hypoglycemia
Japanese encephalitis
Hyperosmolar state 