Table 1.
The distribution of aerobic bacteria isolated from hospital rooms and medical device surface swabs, housefly, and sewage samples at a tertiary hospital in Ethiopia.
| Bacteria | Housefly | Surface Swabs | Sewage | Total | ||||
|---|---|---|---|---|---|---|---|---|
| n | % | n | % | n | % | n | % | |
| E. coli | 32 | 29.6 | 27 | 25.0 | 49 | 45.4 | 108 | 30.4 |
| Klebsiella species | 24 | 54.5 | 2 | 4.5 | 18 | 40.9 | 44 | 12.4 |
| Providencia species | 44 | 100 | - | - | - | - | 44 | 12.4 |
| Proteus species | 40 | 95.2 | 2 | 4.8 | - | - | 42 | 11.8 |
| Enterobacter species | 16 | 69.6 | 1 | 4.3 | 6 | 26.1 | 23 | 6.5 |
| Acinetobacter species | 6 | 31.6 | 4 | 21.1 | 9 | 47.4 | 19 | 5.4 |
| M. morganii | 14 | 100 | - | - | - | - | 14 | 3.9 |
| Aeromonas species | 1 | NA | 7 | NA | 2 | NA | 10 | 2.8 |
| Kluyvera species | 7 | NA | - | - | 2 | NA | 9 | 2.5 |
| R. ornithinolytica | 7 | NA | - | - | 2 | NA | 9 | 2.5 |
| W. chitiniclastica | 9 | NA | - | - | - | - | 9 | 2.5 |
| C. freundii | 5 | NA | - | - | - | - | 5 | 1.4 |
| Pantoea species | 2 | NA | - | - | 1 | NA | 3 | 0.8 |
| P. gergoviae | 1 | NA | - | - | 2 | NA | 3 | 0.8 |
| E. hermannii | 1 | NA | - | - | 1 | NA | 2 | 0.6 |
| L. adecarboxylata | 1 | NA | - | - | 1 | NA | 2 | 0.6 |
| C. sakazakii | - | - | - | - | 1 | NA | 1 | 0.3 |
| E. fergusonii | - | - | 1 | NA | - | - | 1 | 0.3 |
| Hafnia alvei | 1 | NA | - | - | - | - | 1 | 0.3 |
| I. indica | 1 | NA | - | - | - | - | 1 | 0.3 |
| M. wisconsensis | 1 | NA | - | - | - | - | 1 | 0.3 |
| P. carotovorum | 1 | NA | - | - | - | - | 1 | 0.3 |
| P. putida | 1 | NA | - | - | - | - | 1 | 0.3 |
| Salmonella species | - | - | 1 | NA | - | - | 1 | 0.3 |
| S. maltophilia | 1 | NA | - | - | - | - | 1 | 0.3 |
| Total | 216 | 60.8 | 45 | 12.7 | 94 | 26.5 | 355 | 100 |
Key: NA: not applicable, percentage was not calculated if the total number of bacterial isolates was less than 14.