Bacterial pathogens | No. of isolates | % |
---|---|---|
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 |