Kuria J K N, Wahome R G, Jobalamin M, Kariuki S M
Department of Veterinary Pathology and Microbiology, University of Nairobi, Nairobi, Kenya.
East Afr Med J. 2009 Apr;86(4):151-5. doi: 10.4314/eamj.v86i4.46943.
To determine the quantity and quality of bacterial and fungi on money coins and to identify those that could pose a public health risk.
Random sampling of coins from subjects within predetermined categories.
Westlands division of Nairobi Metropolitan province.
Twenty-shilling coin samples were collected from matatu (a common commuter vehicle in Kenya) taxi conductors, greengrocers, shoe shiners, butchers, food kiosk/restaurant attendants, grocery shops attendants, roast maize vendors and school children. Forty coin samples were analysed for both the total viable content and the types of bacterial and fungal organisms.
Average bacterial content on the coins ranged from 2.3 x 10(3) to 25.5 x 10(3) and fungi content from 11 to 377 colony forming units. The following potentially pathogenic bacteria were among those isolated: Escherichia coli, Klebsiella, Serratia, Enterobacter, Salmonella, Acinetobacter, Enterococci, Staphylococcus and Bacillus cereus. In addition, this is the first report of potentially pathogenic fungal isolation from money coins. Penicillium spp, Aspergillus niger, Fusarium, Rhizopus, Altenaria spp, Candida spp and Cryptococcus were isolated.
Money coins harbour potentially pathogenic bacteria and fungi that may pose a public health risk. Hand hygiene is therefore strongly recommended, especially for those who simultaneously handle food and money.
确定硬币上细菌和真菌的数量及质量，并识别那些可能构成公共卫生风险的细菌和真菌。
从预先确定类别的受试者中随机抽取硬币样本。
内罗毕大都会省韦斯特兰兹区。
从肯尼亚常见的通勤车辆“马塔图”出租车售票员、蔬菜水果商、擦鞋匠、屠夫、食品摊/餐馆服务员、杂货店服务员、烤玉米小贩和学童处收集20先令硬币样本。对40个硬币样本进行了总活菌含量以及细菌和真菌种类的分析。
硬币上的平均细菌含量在2.3×10³至25.5×10³之间，真菌含量在11至377个菌落形成单位之间。分离出的潜在致病细菌包括：大肠杆菌、克雷伯菌、沙雷菌、肠杆菌、沙门氏菌、不动杆菌、肠球菌、葡萄球菌和蜡样芽孢杆菌。此外，这是首次从硬币中分离出潜在致病真菌的报告。分离出了青霉属、黑曲霉、镰刀菌、根霉、链格孢属、念珠菌属和隐球菌。
硬币上存在可能构成公共卫生风险的潜在致病细菌和真菌。因此，强烈建议注意手部卫生，尤其是对于那些同时接触食物和钱币的人。
