Koroglu Mehmet, Gunal Selami, Yildiz Fatma, Savas Mehtap, Ozer Ali, Altindis Mustafa
Sakarya University School Of Medicine, Sakarya, Turkey.
J Infect Dev Ctries. 2015 Dec 30;9(12):1308-14. doi: 10.3855/jidc.6171.
Touch-screen mobile phones/devices (TMPs/Ds) are increasingly used in hospitals. They may act as a mobile reservoir for microbial pathogens. The rates of microbial contamination of TMPs/Ds and keypad mobile phones (KMPs) with respect to different variables including use by healthcare workers (HCWs)/non-HCWs and the demographic characteristics of users were investigated.
A total of 205 mobile phones/devices were screened for microbial contamination: 76 devices belonged to HCWs and 129 devices belonged to the non-HCW group. By rubbing swabs to front screen, back, keypad, and metallic surfaces of devices, 444 samples were collected.
Of 205 mobile phones/devices, 143 (97.9%) of the TMPs/Ds and 58 (98.3%) of the KMPs were positive for microbial contamination, and there were no significant differences in contamination rates between these groups, although TMPs/Ds had significantly higher microbial load than KMPs (p <0.05). The significant difference in this analysis was attributable to the screen size of mobile phones ≥ 5". Microbial contamination rates increased significantly as phone size increased (p <0.05). Higher numbers of coagulase-negative Staphylococci (CNS) were isolated from KMPs than TMPs/Ds (p = 0.049). The incidence of Enterococcus spp. was higher on the KMPs of HCWs, and methicillin resistant CNS was higher from the TMPs/Ds of non-HCWs (p <0.05). Isolation of CNS, Streptococcus spp. and Escherichia coli was higher from the TMPs/Ds of HCWs (p <0.05).
We found no significant difference between TMP/Ds and KMPs in terms of microbial contamination, but TMP/Ds harboured more colonies and total microbial counts increased with screen size.
触摸屏移动电话/设备（TMPs/Ds）在医院中的使用越来越广泛。它们可能成为微生物病原体的移动储存库。本研究调查了TMPs/Ds和按键式移动电话（KMPs）在不同变量（包括医护人员/非医护人员的使用情况以及用户的人口统计学特征）方面的微生物污染率。
共筛选了205部移动电话/设备以检测微生物污染情况：其中76部设备属于医护人员，129部设备属于非医护人员组。通过用拭子擦拭设备的正面屏幕、背面、按键和金属表面，共采集了444个样本。
在205部移动电话/设备中，143部（97.9%）的TMPs/Ds和58部（98.3%）的KMPs微生物污染检测呈阳性，尽管TMPs/Ds的微生物载量显著高于KMPs（p<0.05），但两组之间的污染率无显著差异。该分析中的显著差异归因于屏幕尺寸≥5英寸的移动电话。随着手机尺寸的增加，微生物污染率显著上升（p<0.05）。从KMPs中分离出的凝固酶阴性葡萄球菌（CNS）数量高于TMPs/Ds（p = 0.049）。医护人员的KMPs上肠球菌属的发生率较高，而非医护人员的TMPs/Ds上耐甲氧西林CNS的发生率较高（p<0.05）。从医护人员的TMPs/Ds中分离出CNS、链球菌属和大肠杆菌的比例更高（p<0.05）。
我们发现TMPs/Ds和KMPs在微生物污染方面没有显著差异，但TMPs/Ds含有更多菌落，且总微生物数量随屏幕尺寸增加而增加。
