| Pathogen | N | % |
| Gram positive | 51 | 40.8 |
| Staphylococcus aureus | 46 | 36.8 |
| Coagulase negative staphylococcus | 5 | 4.0 |
| Gram negative | 74 | 59.2 |
| Escherichia coli | 13 | 10.4 |
| Klebsiella species | 1 | 0.8 |
| Pseudomonas aeruginosa | 17 | 13.6 |
| Citrobacter species | 12 | 9.6 |
| Acinetobacter species | 9 | 7.2 |
| Coliforms | 3 | 2.4 |
| Proteus species | 11 | 8.8 |
| Non fermenting gram negative bacillus | 5 | 4.0 |
| Enterobacter species | 3 | 2.4 |