|
Streptococcus species
|
55
|
54%
|
|
Streptococcus milleri group
|
32
| |
|
Streptococcus oralis/sanguis
|
3
| |
|
Group A streptococcus
|
1
| |
|
Streptococcus pneumoniae
|
4
| |
|
Streptococcus bovis
|
1
| |
|
Streptococcus species
|
14
| |
|
Staphylococci
|
16
|
15%
|
|
Staphylococcus aureus
|
14
| |
|
Coagulase-negative staphylococci
|
2
| |
|
Gram-negative bacteria
|
8
|
8%
|
|
E.coli
|
2
| |
|
Haemophilus spp.
|
5
| |
|
Pseudomonas
|
1
| |
|
Anaerobic bacteria
|
17
|
17%
|
|
Fusobacteria
|
4
| |
|
Actinomyces
|
2
| |
|
Prevotella
|
2
| |
|
Peptostreptococci
|
2
| |
|
Other anerobic bacteria
|
7
| |
|
Nocardia
|
2
|
2%
|
|
Other species
|
4
|
4%
|
|
Negative culture, n= patients
|
14
|
14%
|
|
Mixed bacterial pathogens
|
11
|
11%
|
|
Primary microscopy compatible with several different bacterial species
|
23
|
23%
|
|
Positive gram-stain from pus/CSF
|
64
|
64%
|
|
Gram-stain positive/negative culture
|
4/65
| |
|
Negative gram-stain and positive culture
|
18
| |
|
Negative culture from brain pus
|
7
| |
