Table 3.

Results of the CSF analysis

Test	Result	Normal values
Cell count	20 cells/mm3 (90% lymphocytes)	0–5 cells/mm3
Glucose	4.9 mmol/L	2.2–4.4 mmol/L
Protein	40 mg/dL	15–60 mg/dL
Gram stain	No organism is seen
Culture	No growth
Herpes simplex virus I and II DNA PCR	Negative
Varicella zoster virus DNA PCR	Negative
COVID-19 PCR	Positive
Autoimmune panel	Negative
Encephalitis panel	Negative