摘要：

　　为了证实牙科学生比非牙科学生携带了更多的耐甲氧西林金黄色葡萄球菌（MRSA）这个假说，我们选取接触五到六年病人的100名牙科学生，以及81名非牙科学生，使用多聚酶链反应检测他们鼻咽MRSA携带情况。总共181名学生身体健康，在检测前未使用抗生素。结果显示牙科学生的携带率（20/100）显著高于非牙科学生（5/81）（OR值：4.04; 95%可信区间：1.6-12.6；P=0.0033）。此外，牙科学生移动电话上携带MRSA的概率也很高（8/100）。所有分离出的MRAS均由脉冲场凝胶电泳方法从流行病学上有意义的菌株鉴别出来。结果表明，牙科学生由于职业原因暴露于MRSA。

　　原文阅读：Higher prevalence of meticillin-resistant Staphylococcus aureus among dental students.

http://www.journalofhospitalinfection.com/article/S0195-6701(14)00009-7/abstract

　　Abstract

　　In order to test the hypothesis that more dental students are meticillin-resistant Staphylococcus aureus (MRSA) carriers than non-dental students, 100 dental students with five to six years of exposure to patients and 81 non-dental students were tested for nasal and pharyngeal MRSA carriage by polymerase chain reaction. All 181 students were clinically healthy and none had taken antibiotics. Significantly more dental students (20/100) carried MRSA than non-dental students (5/81) (odds ratio: 4.04; 95% confidence interval: 1.6-12.6; P = 0.0033). Also, more dental students' mobile phones (8/100) carried MRSA. All MRSA isolates were distinguished by pulsed-field gel electrophoresis from epidemiologically significant strains. The results suggest that dental students are occupationally exposed to MRSA.