Table 2.
PSB culture positive results (≥103 CFU/mL)
| Low respiratory tract pathogens | Number of strains | (%) |
|---|---|---|
| Gram-negative bacilli | ||
| A. baumanni | 19 | 25.0 |
| P. aeruginosa | 15 | 19.7 |
| K. pneumoniae | 11 (7 ESBL-producing) | 14.5 |
| E. coli | 6 (2 ESBL-producing) | 7.89 |
| Enterobacter cloacae | 4 | 5.26 |
| Pseudomonas maltophilia | 3 | 3.94 |
| Others | 2 | 2.63 |
| Gram-positive | ||
| MRSA | 6 | 7.89 |
| MRCNS | 4 | 5.26 |
| Enterococcus faecalis | 2 | 2.63 |
| Fungi | ||
| C. albicans | 4 | 5.26 |
| Total | 76 | 100 |
Abbreviations: ESBL, extended-spectrum β lactamase; MRCNS, methicillin-resistant coagulase-negative Staphylococcus; MRSA, methicillin-resistant S. aureus; PSB, protective specimen brush.