| % | No. S. marcescens isolates | Clinical specimens |
| 3.7 | 3 | Fluid, Other Body |
| 18.5 | 15 | Sputum |
| 32 | 26 | Blood |
| 2.5 | 2 | Tip, Catheter |
| 32 | 26 | Wound |
| 2.5 | 2 | Throat Swab |
| 8.6 | 7 | Urine Culture |
| 100 | 81 | Total |