Table 2.
Distribution of leading pathogens in patients with ventilator-associated pneumonia
| Details regarding episodes of infection | Total (%)a |
| Number of episodes microbiologically documented | 177 |
| Number of microorganisms identified | 271 |
| Gram-negative microorganisms | 140 (52) |
| Pseudomonas aeruginosa | 25 (9) |
| Enterobacter spp. | 20 (7) |
| Escherichia coli | 17 (6) |
| Klebsiella pneumoniae | 15 (6) |
| Proteus mirabilis | 7 (3) |
| Haemophilus influenzae | 6 (2) |
| Non-aeruginosa Pseudomonas spp. | 6 (2) |
| Serratia marcescens | 5 (2) |
| Other Gram-negative micro-organismsb | 39 (14) |
| Gram-positive microorganisms | 75 (28) |
| Staphylococcus aureus | 55 (20) |
| Coagulase-negative staphylococci | 10 (4) |
| Enterococus faecalis | 3 (1) |
| Streptococcus pneumoniae | 2 (1) |
| Other streptococci | 2 (1) |
| Other Gram-positive micro-organisms | 3 (1) |
| Other micro-organisms | 56 (21) |
| Candida albicans | 34 (13) |
| Non-albicans Candida spp. | 6 (2) |
| Other micro-organismsc | 16 (6) |
aThe percentage given is that of the total number of micro-organisms (n = 271). bOther Gram-negative microorgamisms included other enterobacteriaceae, Acinetobacter spp., Citrobacter spp., other Klebsiella spp. and Morganella morgani. cOther micro-organisms include fungi and viruses.