由于八十年代广泛地进行包括白喉、百日咳、破伤风三联制剂在内的儿童计划免疫工作，白喉的发病率出现大幅度的下降，佳木斯地区已经连续四年无白喉病例发病报告。为了解白喉在佳木斯地区历史上的发病情况，我们对1949~1999年51年间的白喉发病情况进行了研究。1 材料与方法本研 The incidence of diphtheria has dropped significantly due to the planned immunization of children, including diphtheria, whooping cough and tetanus triple tetanus, in the 1980s. Jiamusi has reported no diphtheria cases for four consecutive years. To understand the history of Diphtheria in Jiamusi region, we investigated the incidence of diphtheria in 51 years from 1949 to 1999. 1 materials and methods of this research