Table 1.
Bacteria isolated from environmental surfaces
| Organisms | Elevator buttons (n = 48) | Biometric attendance devices (n = 24) | Door handles (n = 80) | Telephone sets (n = 30) | Railing (n = 20) | Water taps (n = 30) |
|---|---|---|---|---|---|---|
| S. aureus | 11 (22.9%) | 08 (33.3%) | 13 (16.2%) | 06 (20%) | 03 (15%) | 03 (10%) |
| S. epidermidis | 10 (20.8%) | 06 (25%) | 11 (13.7%) | 04 (13.3%) | 01 (5%) | 02 (6.6%) |
| Enterococcus species | 04 (8.3%) | 05 (20.8%) | 08 (10%) | 06 (20%) | 02 (10%) | 03 (10%) |
| Diphtheroids | 05 (10.4%) | 04 (16.6%) | 07 (8.7%) | 08 (26.6%) | 04 (20%) | 07 (23.3%) |
| Micrococcus species | 07 (14.6%) | 05 (20.8%) | 08 (10%) | 11 (36.6%) | 02 (10%) | 04 (13.3%) |
| Escherichia coli | 03 (6.2%) | 02 (8.3%) | 04 (5%) | 03 (10%) | 01 (5%) | 02 (6.6%) |
| Pseudomonas species | 02 (4.1%) | 03 (12.5%) | – | – | – | 02 (6.6%) |
| Acinetobacter species | 02 (4.1%) | 03 (12.5%) | 04 (5%) | 05 (16.6%) | 01 (5%) | 04 (13.3%) |
| Total | 44 | 36 | 55 | 43 | 14 | 27 |