Brook I
Am J Otolaryngol. 1985 Mar-Apr;6(2):111-4. doi: 10.1016/s0196-0709(85)80048-x.
External otitis caused by Staphylococcus aureus was observed in two patients after they wore airline headset devices. The bacterial flora of 40 headset devices was evaluated. Bacteria were recovered from all headsets, and the number of organisms ranged from 10 to 1,200 (mean 138 +/- 246 organisms per headset). The predominant organisms recovered were S. aureus (in 12 headsets), Bacillus sp. and S. epidermidis (ten headsets each), alpha-hemolytic streptococci (in eight) and Corynebacterium sp. (in six). The effect of wearing a sterile headset for an hour was investigated using 20 volunteers. After wearing the headsets, an increase of at least two log10 colony-forming units was observed in 11 (55 per cent) of the volunteers, a decrease was observed in one (5 per cent), and no significant change in the bacterial flora was noticed in eight (40 per cent). The study demonstrates the presence of potential pathogens in headset devices and the increase in the number of endogenous flora in individuals who wear these devices.
两名患者佩戴航空耳机设备后发生了由金黄色葡萄球菌引起的外耳道炎。对40个耳机设备的细菌菌群进行了评估。所有耳机均检出细菌，每个耳机的菌数在10至1200之间（平均每个耳机138±246个菌）。检出的主要细菌为金黄色葡萄球菌（12个耳机）、芽孢杆菌属和表皮葡萄球菌（各10个耳机）、α溶血性链球菌（8个耳机）和棒状杆菌属（6个耳机）。使用20名志愿者研究了佩戴无菌耳机1小时的影响。佩戴耳机后，11名（55%）志愿者的菌落形成单位至少增加了两个对数10，1名（5%）志愿者的菌落形成单位减少，8名（40%）志愿者的细菌菌群未观察到显著变化。该研究证明了耳机设备中存在潜在病原体，以及佩戴这些设备的个体体内内源性菌群数量增加。
