To exclude other forms of encephalitis, the CSF analysis should include cell count, protein, glucose, CSF/serum glucose ratio, albumin quotient, IgG index and synthesis rate, oligoclonal bands, broad viral studies including HSV1/2 and VZV PCR and serology, bacterial and fungal cultures if appropriate, cytology, flow cytometry, and an autoimmune encephalopathy/encephalitis panel [25]. This evidence concerns the gene ALB and viral encephalitis.