目的 :控制白喉疫情。方法 :对儿童实施 PD、DPT、DT常规免疫 ,人群免疫水平监测及疫情漏报率调查。结果 :接种率长期稳定在 90～ 95以上 ,人群免疫水平达 85 %以上 ,白喉疫情可得到控制。结论 :做好 PD、DPT、DT常规免疫是控制直至消除白喉的有效措施 Purpose: To control the diphtheria epidemic. Methods: The children were routinely immunized with PD, DPT, DT, the level of immune surveillance and the rate of false negative reports. Results: The inoculation rate was stable at 90-95 for a long time, and the immunity level of the population reached more than 85%. The diphtheria epidemic could be controlled. Conclusion: The routine immunization of PD, DPT and DT is an effective measure to control and eliminate diphtheria