Antimicrobial sensitivity patterns of cerebrospinal fluid (CSF) isolates in Namibia: implications for empirical antibiotic treatment of meningitis

Table 3 Frequency of organisms isolates by age group

Organism	<1 mo	1-11 mos	1-55 yrs	6-12 yrs	> 12 yrs	Age Unk	Total	% of total
Streptococcus pneumoniae	2	31	27	17	87	42	187	37.18
Neisseria species	2	5	14	18	56	12	107	21.27
Haemophilus species	0	18	24	2	9	6	59	11.73
Staphylococcus	0	10	6	2	11	7	36	7.16
Others Gram negative	0	11	2	0	7	2	22	4.39
Escherichia coli	1	2	1	0	15	3	22	4.37
Streptococcus species							19	3.77
Other Gram positives	0	4	3	1	5	0	13	2.6
Enterococcus species	0	3	0	2	1	3	9	1.79
Acinetobacter species	0	4	0	2	2	0	8	1.59
ESBL’s Klebsiella pneumoniae	4	2	0	0	0	1	7	1.39
Klebsiella	0	1	1	0	4	1	7	1.39
Pseudomonas species	0	2	2	1	2	0	7	1.39
Total	9	93	80	45	199	77	503	100.02

Source: MEDITECH Database 2009–2012. Legend: mo=month; mos=months; yrs=years; age unk= age unknown; % = percent.