De Arnabjyoti, Datchanamurthy Barathane, Y Valentina, Bhosale Namrata, Dakshinamurthy Senkadhirdasan
Medicine, Mahatma Gandhi Medical College and Research Institute, Puducherry, IND.
Pharmacology, Mahatma Gandhi Medical College and Research Institute, Puducherry, IND.
Cureus. 2024 Jul 17;16(7):e64782. doi: 10.7759/cureus.64782. eCollection 2024 Jul.
Background As mobile phones act as a potential source of microbial contamination, particularly in a hospital environment, the effectiveness of two most debated interventions namely ultraviolet radiation and disinfectant wipes in reducing the microbial contamination of mobile phones is compared. Objective To screen the mobile phones of healthcare personnel for the presence of microorganisms and to compare the effectiveness of ultraviolet radiation and disinfectant wipes in reducing microbial contamination. Methods and materials Pre-intervention and post-intervention swabs were collected before and after the use of each intervention respectively using 56 samples and cultured for growth in nutrient agar. Agar plates are subjected to quantitative analysis using bacterial colony count to reflect the efficacy of the specific intervention used. The data collected was entered in Microsoft Excel (Microsoft Corp., Redmond, WA, USA) and analysis was done using standard statistical packages. Results While comparing the pre-intervention bacterial load with the post-intervention load, post-intervention bacterial contamination in terms of colony-forming units/CFU has drastically reduced after both interventions, which is validated by statistical significance. However, it was observed participants using disinfectant wipes as intervention had 2.07 times higher chance of having a low bacterial load which wasn't statistically significant. Conclusion Our study shows that with the use of any intervention from the above-mentioned interventions, bacterial load or bacterial contamination can be reduced significantly, thus pointing out that both ultraviolet radiation and disinfectant wipes are effective in reducing contamination of mobile phones. It was also found that male doctors have more bacterial load than females, which can be minimized by effectively changing behavioral habits.
由于手机可能成为微生物污染的源头，尤其是在医院环境中，因此比较了两种最具争议的干预措施，即紫外线辐射和消毒湿巾在减少手机微生物污染方面的效果。
筛查医护人员手机上的微生物，并比较紫外线辐射和消毒湿巾在减少微生物污染方面的效果。
分别使用56个样本，在每次干预使用前和使用后采集干预前和干预后的拭子，并在营养琼脂中培养以促进生长。使用细菌菌落计数对琼脂平板进行定量分析，以反映所使用的特定干预措施的效果。将收集到的数据输入Microsoft Excel（美国华盛顿州雷德蒙德市微软公司），并使用标准统计软件包进行分析。
在比较干预前和干预后的细菌载量时，两种干预措施后，以菌落形成单位/ CFU衡量的干预后细菌污染均大幅减少，这一点具有统计学意义。然而，观察到使用消毒湿巾作为干预措施的参与者细菌载量较低的可能性高出2.07倍，但这在统计学上并不显著。
我们的研究表明，使用上述任何一种干预措施，细菌载量或细菌污染都可以显著降低，因此指出紫外线辐射和消毒湿巾在减少手机污染方面均有效。还发现男医生的细菌载量比女医生多，通过有效改变行为习惯可以将其降至最低。
