Borneff M, Geyer G
Zentralbl Bakteriol Mikrobiol Hyg B. 1982 Aug;176(4):383-90.
A bacteriological study of the microflora in the auditory meatus of patients with otitis externa after swimming in correlation to the water flora was done during winter 80/81. Six indoor-pools (monthly controls ahead had proven unobjectionable water quality) were analyzed daily, while all swimmers were asked to come for otologic examination whenever symptoms of otitis externa appeared. In a control group without otitis externa the auditory canal was inspected and swabs were taken immediately after swimming. The results indicate, that a short term contamination of the ear canal is possible by swimming in water of unobjectionable quality; this however does not necessarily lead to clinical appearances. Since the incidence of otitis externa in our study (0.01%) was not higher than the morbidity rate in nonswimmers, the data support the concept of the multiplex etiology for otitis externa.
1980/1981年冬季，针对游泳后外耳道炎患者外耳道内微生物群与水体微生物群的相关性开展了一项细菌学研究。对六个室内游泳池（此前每月的检测已证明水质无可挑剔）进行每日分析，同时要求所有游泳者一旦出现外耳道炎症状就前来接受耳科检查。在一个无外耳道炎的对照组中，游泳后立即对外耳道进行检查并采集拭子。结果表明，在水质无可挑剔的水中游泳可能导致耳道短期污染；然而，这不一定会引发临床表现。由于我们研究中外耳道炎的发病率（0.01%）并不高于非游泳者的发病率，这些数据支持外耳道炎多重病因的概念。
