Table 4 Pathogens identified from the blood culture samples using PCR- and microarray-based analysis.
From: Rapid identification of bacterial pathogens using a PCR- and microarray-based assay
Correct positive identification of the bacteria | Number | Correct negative identification | Number |
|---|---|---|---|
Staphylococcus aureus | 24 | Bacillus sp | 2 |
Enterococcus faecalis | 9 | Bacteroides fragilis group | 2 |
Staphylococcus epidermidis +mecA | 8 | Candida albicans | 4 |
Klebsiella pneumoniae | 7 | Diphtheroid | 1 |
Streptococcus pneumoniae | 6 | Enterobacter cloacae | 1 |
Streptococcus pyogenes | 6 | Enterococcus casseliflavus | 1 |
Enterococcus faecium | 4 | Enterococcus sp | 4 |
CNS (Staphylococcus haemolyticus) | 1 | Escherichia coli | 19 |
CNS + mecA (S. haemolyticus) | 1 | Escherichia coli, Streptococcus viridans | 2 |
Streptococcus agalactiae | 1 | Fusobacterium necrophorum | 3 |
Fusobacterium nucleatum, Micromonas micros | 1 | ||
Correct positive identification of the bacteria but an additional mecA marker identified | Klebsiella oxytoca | 4 | |
Streptococcus pneumoniae + mecA | 1 | Micrococcus sp | 1 |
Enterococcus faecalis + mecA | 1 | Propionibacter sp | 2 |
Pseudomonas aeruginosa | 3 | ||
Pseudomonas-like gram- rod | 1 | ||
Salmonella Enteritidis | 3 | ||
Salmonella Paratyphi A | 1 | ||
Stenotrophomonas maltophilia | 1 | ||
Streptococcus betahemolytic group C | 1 | ||
Streptococcus bovis | 1 | ||
Streptococcus sanguis (co-infection with K. pneumoniae) | |||
Streptococcus viridans | 4 | ||
Blood culture negative samples | 40 | ||
False negative identification* | |||
CNS | 6 (0) | ||
Staphylococcus aureus | 2 (1) | ||
Staphylococcus epidermidis | 2 (1) | ||
Streptococcus pyogenes | 1 (1) | ||
Streptococcus agalactiae | 1 (0) | ||
Streptococcus pneumoniae | 1 (0) | ||
Enterococcus faecalis | 1 (0) | ||
Enterococcus faecium | 1 (0) |