Table 2.

CSF studies during the hospital stay

Age (days)	Day 5	Day 8
CSF appearance	Clear	Clear
CSF glucose (mmol/L)*	2.8	2.7
CSF protein (0.15–1.30 g/L)	0.86 g/L	0.59 g/L
White cell count (cells/mm3)	<1	2
Red blood cells (cells/mm3)	30	55
Gram stain	No organism	No organism
CSF culture	No growth	No growth
HSV type 1 DNA	Not detected	Not detected
HSV type 2 DNA	Not detected	Not detected
Varicella-zoster virus DNA	Not detected	Not detected
Enterovirus RNA	Not detected	Not detected
Parechovirus RNA	Not detected	Not detected

*Normal CSF glucose is approximately two-thirds of plasma glucose level (4.5, 4.2 mmol/L respectively).

CSF, cerebrospinal fluid; HSV, herpes simplex virus.