Table 6 Comparison of gram-negative bacterial colonization by traditional culture and PCR/ESI-TOF-MS per subject
Organism | Nares | Oropharynx | Groin | |||
|---|---|---|---|---|---|---|
| Â | Culture | ESI-MS | Culture | ESI-MS | Culture | ESI-MS |
Total organisms | 4 | 7 | 17 | 10 | 13 | 4 |
Acinetobacter baumannii-calcoaceticus complex | 0 | 0 | 1 | 0 | 0 | 0 |
Acinetobacter lwoffii | 0 | 0 | 1 | 0 | 1 | 0 |
Acinetobacter species | 0 | 0 | 0 | 2 | 0 | 1 |
Alcaligenes sp. | 0 | 0 | 1 | 0 | 0 | 0 |
Citrobacter sp. | 0 | 0 | 0 | 0 | 0 | 0 |
Enterobacter aerogenes | 1 | 0 | 0 | 0 | 1 | 1 |
Enterobacter cloacae | 0 | 0 | 1 | 0 | 0 | 0 |
Escherichia coli | 2 | 3 | 0 | 4 | 1 | 0 |
Klebsiella oxytoca | 0 | 0 | 1 | 0 | 1 | 0 |
Klebsiella pneumoniae | 0 | 2 | 1 | 0 | 2 | 2 |
Moraxella sp. | 0 | 0 | 0 | 1 | 0 | 0 |
Ochrobactrum anthropi | 0 | 0 | 2 | 0 | 0 | 0 |
Pantonea agglomerans | 0 | 0 | 0 | 0 | 2 | 0 |
Proteus mirabilis | 0 | 2 | 0 | 1 | 0 | 0 |
Pseudomonas aeruginosa | 0 | 0 | 4 | 0 | 0 | 0 |
Pseudomonas fluorescens | 0 | 0 | 1 | 0 | 0 | 0 |
Pseudomonas oryzihabitans | 0 | 0 | 0 | 0 | 1 | 0 |
Pseudomonas species | 0 | 0 | 1 | 0 | 0 | 0 |
Pseudomonas stutzeri | 0 | 0 | 0 | 0 | 1 | 0 |
Salmonella spp. | 0 | 0 | 0 | 2 | 0 | 0 |
Shigella flexneri | 0 | 0 | 0 | 0 | 1 | 0 |
Serratia marcescens | 1 | 0 | 1 | 0 | 1 | 0 |
Shewanella putrefaciens | 0 | 0 | 0 | 0 | 1 | 0 |
Stenotrophomonas maltophilia | 0 | 0 | 2 | 0 | 0 | 0 |