TABLE 2.
Clinical isolates recovered from septic episodes of monomicrobic (143) and polymicrobic (2) bacteremia or fungemia detected by BacT/ALERT PSA and VA culture bottlesa
| Microorganism | No. of isolates detected by: |
Pd value | ||
|---|---|---|---|---|
| Both types of bottle | PSA bottles only | VA bottles only | ||
| Gram-positive cocci | ||||
| Staphylococcus aureus | 29 | 4 | 5 | NS |
| Methicillin-resistant S. aureus | 3 | 0 | 0 | NS |
| CoNSb | 20 | 11 | 4 | NS |
| Enterococcus faecalis | 4 | 0 | 3 | NS |
| Enterococcus faecium | 0 | 2 | 0 | NS |
| Streptococcus pneumoniae | 10 | 0 | 1 | NS |
| Beta-hemolytic streptococcic | 3 | 1 | 1 | NS |
| Gram-negative bacilli | ||||
| Acinetobacter baumannii | 1 | 0 | 0 | NS |
| Citrobacter koseri | 1 | 0 | 0 | NS |
| Enterobacter aerogenes | 1 | 0 | 0 | NS |
| Escherichia coli | 14 | 2 | 1 | NS |
| Flavobacterium spp. | 0 | 1 | 0 | NS |
| Haemophilus influenzae | 0 | 1 | 0 | NS |
| Klebsiella oxytoca | 1 | 0 | 0 | NS |
| Klebsiella pneumoniae | 3 | 0 | 1 | NS |
| Proteus vulgaris | 1 | 0 | 0 | NS |
| Pseudomonas aeruginosa | 4 | 1 | 0 | NS |
| Serratia marcescens | 1 | 0 | 0 | NS |
| Anaerobic bacterium, | 0 | 0 | 1 | NS |
| Clostridium perfringens | ||||
| Fungi | ||||
| Candida albicans | 2 | 1 | 1 | NS |
| Candida glabrata | 3 | 0 | 1 | NS |
| Candida parapsilosis | 1 | 0 | 0 | NS |
| Candida tropicalis | 1 | 0 | 0 | NS |
| Yeast | 0 | 0 | 1 | NS |
| All microorganisms | 103 | 24 | 20 | NS |
a
Organism totals exceed the numbers of cultures because some cultures contained more than one organism.
b
Includes 12 Staphylococcus epidermidis isolates, 1 Staphylococcus hominis isolate, and 22 isolates that were not identified to the species level.
c
Includes four group B streptococci and one group A beta-hemolytic streptococcus.
d
NS, not significant (P > 0.05).