1990年5～7月间哈尔滨市某罐头厂发生一起皮炎暴发,经调查证实为革螨皮炎(gamasidasis),现报告如下。流行病学调查该厂位于哈市郊区,主要生产肉类罐头。所有病例的发生在空罐车间和包装车间,这两个车间共有职工296人,其中女工201人,男工95人。总患病例数为53例,均为女工,罹患率为17.9%。5月中旬开始出现散发病例,6年份呈暴发。这两个车间为旧厂房,光线不足,湿度较大,卫生状况不佳,各设一个简陋的女更衣室,而男工则无更衣室。女工在更衣室内休息和用午餐,有时就把吃剩的东西扔在 From May to July 1990, a dermatitis outbreak occurred in a canning factory in Harbin City. After investigation, it was confirmed as gamasidasis. The report is as follows. Epidemiological survey The plant is located in the suburbs of Harbin, the main production of canned meat. All cases occurred in empty cans and packaging workshops, where a total of 296 workers, of whom 201 were women and 95 were men, were employed. The total number of cases was 53, all female workers, the attack rate was 17.9%. Sporadic cases began to appear in mid-May, with an outbreak in 6 years. The two workshops are old factories, with poor lighting, high humidity and poor sanitation. Each has a simple female locker room, while the male workers have no locker room. Women workers in the locker room to rest and lunch, sometimes throwing leftover things