Al-Abdalall Amira H A
Department of Botany and Microbiology, Faculty of Science for Girls, University of Dammam, Kingdom of Saudi Arabia.
J Family Community Med. 2010 Jan;17(1):11-4. doi: 10.4103/1319-1683.68783.
This study was conducted to determine microbial contamination of mobile phones in the city of Dammam, in the eastern region of Saudi Arabia, and identify the most important microbial species associated with these phones in order to take the necessary remedial measures.
The analysis of a total of 202 samples was done to identify fungal and pathogenic bacteria isolates. Sterile swabs were firmly passed on the handset, the buttons and the screens of mobile phones, then inoculated into media of bacteria and fungi. Frequency distribution of isolates were calculated.
There were 737 isolated of the following bacteria: Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, Neisseria sicca, Micrococcus luteus, Proteus mirabilis, Bacillus subtilis, and Enterobacter aerogenes at the rate of 56.58, 13.57, 8.01, 7.73, 6.51, 3.66, 2.85 and 1.09% respectively. There were fungal isolates as follows: Alternaria alternata, Aspergillus niger, Cladosporium sp., Penicillium spp., Aspergillus flavus, Aspergillus fumigatus, Rhizopus stolonifer, Aspergillus ochraceus at the rate of 29.07, 26.74, 20.93, 10.47, 6.98, 2.33, 2.33, 1.16%, respectively.
The study showed that all mobile phones under consideration were infected by several microbes, most of which belonged to the natural flora of the human body as well as airborne fungi and soil. This means that it is necessary to sterilize hands after contact with a phone since it is a source of disease transmission.
本研究旨在确定沙特阿拉伯东部地区达曼市手机的微生物污染情况，并识别与这些手机相关的最重要微生物种类，以便采取必要的补救措施。
共对202个样本进行分析，以鉴定真菌和病原菌分离株。用无菌拭子在手机听筒、按键和屏幕上擦拭，然后接种到细菌和真菌培养基中。计算分离株的频率分布。
共分离出737株以下细菌：金黄色葡萄球菌、表皮葡萄球菌、铜绿假单胞菌、干燥奈瑟菌、藤黄微球菌、奇异变形杆菌、枯草芽孢杆菌和气生肠杆菌，其比例分别为56.58%、13.57%、8.01%、7.73%、6.51%、3.66%、2.85%和1.09%。真菌分离株如下：链格孢、黑曲霉、枝孢属、青霉属、黄曲霉、烟曲霉、匍枝根霉、赭曲霉，其比例分别为29.07%、26.74%、20.93%、10.47%、6.98%、2.33%、2.33%、1.16%。
研究表明，所有被研究的手机都受到多种微生物的感染，其中大多数属于人体自然菌群以及空气传播真菌和土壤真菌。这意味着接触手机后有必要对手进行消毒，因为手机是疾病传播源。
