TABLE 2.
Microorganisms detected by BC only, PCR/ESI-MS only, and detected by both methods for definite and probable BSI
| Organism reported | No. of microorganisms detected |
|||
|---|---|---|---|---|
| BC only | PCR/ESI-MS only | BC and PCR/ESI-MS | Total | |
| Definite BSI | ||||
| Gram negatives | 6 | 1 | 1 | 8 |
| Escherichia coli | 4 | 0 | 1 | 5 |
| Fusobacterium nucleatum | 0 | 1 | 0 | 1 |
| Klebsiella oxytoca | 1 | 0 | 0 | 1 |
| Klebsiella pneumoniae | 1 | 0 | 0 | 1 |
| Gram positives | 13 | 1 | 12 | 26 |
| Clostridium ramosum | 1 | 0 | 0 | 1 |
| Enterococcus faecium | 1 | 0 | 2 | 3 |
| Enterococcus faecalis | 1 | 0 | 1 | 2 |
| Gemella spp. | 2 | 0 | 0 | 2 |
| Rothia mucilaginosa | 1 | 0 | 2 | 3 |
| Staphylococcus epidermidisa | 4 | 0 | 5 | 9 |
| Staphylococcus haemolyticusa | 1 | 0 | 1 | 2 |
| Staphylococcus hominisa | 2 | 0 | 0 | 2 |
| Streptococcus mitis | 0 | 0 | 1b | 1 |
| Streptococcus pneumoniae | 0 | 1 | 0 | 1 |
| Fungi | 0 | 0 | 2 | 2 |
| Candida kefyr | 0 | 0 | 1c | 1 |
| Saccharomyces cerevisiae | 0 | 0 | 1c | 1 |
| Total | 19 | 2 | 15 | 36 |
| Probable BSI | ||||
| Brevibacterium paucivorans/Corynebacterium aurisa | 0 | 1 | 0 | 1 |
| Corynebacterium tuberculostearicuma | 0 | 1 | 0 | 1 |
| Gordonia polyisoprenivoransa | 0 | 2 | 0 | 2 |
| Micrococcus luteus | 1 | 0 | 0 | 1 |
| Propionibacterium acnesa | 0 | 2 | 0 | 2 |
| S. epidermidisa | 3 | 0 | 3 | 6 |
| S. haemolyticusa | 0 | 1 | 0 | 1 |
| S. hominisa | 4 | 0 | 0 | 4 |
| Total | 8 | 7 | 3 | 18 |
a
Reported as potential contaminant by PCR/ESI-MS BAC BSI assay.
b
PCR/ESI-MS reported Streptococcus pneumoniae.
c
PCR/ESI-MS reported “fungus detected, no ID provided.”