Courtellemont Laura, Chevrier Sylviane, Degeilh Brigitte, Belaz Sorya, Gangneux Jean-Pierre, Robert-Gangneux Florence
Centre Hospitalier Universitaire Pontchaillou, Rennes, France.
Med Mycol. 2017 Oct 1;55(7):720-724. doi: 10.1093/mmy/myw142.
Trichophyton verrucosum is a zoophilic dermatophyte, known as a causative agent of inflammatory mycoses of the skin and the scalp in humans. In this study, we reviewed all cases of T. verrucosum infection diagnosed in our laboratory over a 12-year period, to determine epidemiological and clinical characteristics. Among 18,340 samples analyzed, 5,186 cultured positive with dermatophytes (2674 patients), of which 64 samples (41 patients) were positive for T. verrucosum. Our data show that there was a strong influence of age on the type of lesion, with children and adults presenting more frequently with tinea capitis and skin infections, respectively (P < .0001). Infection of children and adults resulted more frequently from indirect and direct exposure to cattle, respectively (P < .01). We observed a marked increase of cases over the last 4 years, with a correlation of the number of cases and the mean annual rainfall (P < .05), suggesting that increasing humidity favors cattle infection, and thereby, human infection. Whether this increase is the consequence of climate changes remains to be determined but should be considered.
疣状毛癣菌是一种亲动物性皮肤癣菌，是人类皮肤和头皮炎性真菌病的病原体。在本研究中，我们回顾了12年间在我们实验室诊断的所有疣状毛癣菌感染病例，以确定其流行病学和临床特征。在分析的18340份样本中，5186份培养出皮肤癣菌阳性（2674例患者），其中64份样本（41例患者）疣状毛癣菌阳性。我们的数据表明，年龄对病变类型有很大影响，儿童和成人分别更常出现头癣和皮肤感染（P <.0001）。儿童和成人感染分别更常因间接和直接接触牛而引起（P <.01）。我们观察到过去4年病例显著增加，病例数与年平均降雨量相关（P <.05），这表明湿度增加有利于牛感染，进而导致人类感染。这种增加是否是气候变化的结果仍有待确定，但应予以考虑。
