TABLE 1.

Summary of 26 non-neutropenic cases of bacterial meningitis without pleocytosis reported in English and the present case

Case	Age, years, sex	Causative organism	CSF cell count (×106/L); upper: first, lower: second	CSF protein, g/L	CSF-to-serum glucose ratio* CSF/serum, mmol/L	Gram stain	CSF culture	Blood culture	Empirical treatment	Outcome	Reference
1	47	Neisseria meningitidis	0	0.45	7.05/NA	Negative	Positive	Negative	NA	NA	6
2	30 M	N meningitidis	0	0.47	0.74	Negative	Negative	Positive	NA	Death	7
			90	1.73	0.51	Positive	Positive
3	76 F	Proteus mirabilis	0	0.58	0.63	Negative	Positive	Positive	Yes	Death
			2220	7.55	0/NA	Positive	Positive
4	67 M	N meningitidis	2	1.19	0.42	Negative	Positive	Positive	Yes	Survived
			70	2.65	6.49/NA	Positive	Negative
5	54 F	Escherichia coli	0	0.49	0.54	Negative	Positive	Positive	Yes	Death	8
			4	1.84	0.4	Positive	NA
6	57 M	Streptococcus pneumoniae	1	0.97	0.65	Negative	Positive	Positive	Yes	Survived
7	86 M	S pneumoniae	0	0.40	0.60	Positive	Positive	Positive	Yes	Death
8	52 M	E coli	6	0.55	0.57	Negative	Positive	Positive	No	Death
9	50 F	S pneumoniae	0	0.21	0.54	Negative	Positive	Positive	Yes	Survived	9
			393	0.76	0.36	Negative	Negative
10	26 M	Haemophilus influenzae	1	0.32	3.94/NA	Negative	Negative	Positive	No	Survived	10
			16,600	11.00	2.72/NA	NA	Positive
11	59 F	N meningitidis	1	0.36	0.8	NA	Positive	Positive	NA	NA	11
12	50 F	S pneumoniae	0	021	0.54	NA	Positive	Positive	NA	NA
13	40 F	N meningitidis	0	0.32	0.85	NA	Positive	Negative	NA	NA
14	23 F	N meningitidis	0	0.27	0.69	NA	Positive	Positive	NA	NA
15	33 F	Listeria monocytogenes	0	0.10	0.71	NA	Positive	Positive	NA	NA
16	69 M	N meningitidis	3	0.40	3.89/NA	NA	Positive	Positive	NA	Survived	12
17	18 M	S pneumoniae	0	3.00	0.22/5.00–7.21	Positive	Positive	NA	Yes	Death	13
18	52 M	S pneumoniae	6	0.26	3.94/NA	Negative	Positive	Positive	Yes	Survived	14
			2709	3.60	0.72/NA	Positive	Positive
19	74 F	S pneumoniae	1	0.54	0.85	NA	Positive	Negative	Yes	Survived	15
20	24 F	N meningitidis	2	0.20	0.70	Positive	Positive	Positive	Yes	Survived	16
			5600	3.00	0.72/NA	Negative	Negative
21	21 F	N meningitidis	1	0.38	3.61/NA	Negative	Positive	Positive	Yes	Survived	17
22	60 F	S pneumoniae	1	0.39	0.64	Negative	Negative	Positive	No	Survived	18
			63	0.74	0.72	Negative	Positive
23	37 M	S pneumoniae	1	0.47	2.89/NA	Negative	Positive	Negative	Yes	Survived	19
24	34 F	S pneumoniae	2	0.40	0.61	Positive	Positive	Negative	Yes	Survived	20
			4086	2.70	0.10	Not done	NA
25	62 M	S pneumoniae	1	1.25	0.12	Positive	Positive	Not performed	No	Death
26	83 F	N meningitidis	2	0.56	0.62	Negative	Negative	Positive	No	Survived	Present case
			1	0.53	0.34	Positive	Positive

^*Either cerebrospinal fluid (CSF) or serum glucose is shown where the ratio cannot be calculated. F Female; M Male; NA Not available