The Present study was carried out with the aim to investigate the microbial colonization of computer keyboards and mice in our medical school computer center. In total, 56 samples were collected from surfaces of multiple-user computers in daily open-access, student computer center of School of Medicine. Two samples were taken by sterile swab from each computer keyboard and mouse and were put in trypticase soy broth. The specimens were subcultured onto blood agar and MacConkey agar after initial incubation at 37 oC. The confirmatory standard biochemical tests were then performed to identify the grown bacteria on the culture media. All the key boards and 26 (96.29%) out of total tested computer mice were contaminated with at least two kinds of bacteria. CoNS was the most common contaminated bacteria recovered from computer keyboards (36.5%) and mice (38.8%). Other isolated bacteria were Diphtheroids, Bacillus spp., and Enterobacteriaceae as the least isolates bacteria. S. aureus was detected on the 5 keyboards and 4 mice. In conclusion, this study has shown the multiple- user computer keyboards and mice as potential reservoir for microbial contamination, some of which are of importance in transmission the nosocomial infections between medical students and patients in hospital wards.
کلید واژگان :keyboard, mouse, multiple-user computer, bacterial contamination
ارزش ریالی : 600000 ریال
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