保持计划免疫高接种率水平 ,是预防和控制、乃至消灭相应传染病的必经途径 ,而查漏补种是巩固和提高接种率的重要手段。我市实现计划免疫“三个 85%”目标后 ,不断强化查漏补种工作管理 ,常规免疫接种率一直保持在 92 %以上。1　查漏补种的必要性　下列因素决定了必须实施查漏 Maintaining a high vaccination rate of planned immunization is a necessary way to prevent and control or even eliminate the corresponding infectious diseases, and checking and replanting is an important means to consolidate and increase the vaccination rate. After the city achieved the goal of “three 85%” of planned immunization, the city continuously strengthened the management of leak detection and replanting work, and the routine vaccination rate has been maintained above 92%. A need for leak detection replanting The following factors determine the need to implement leak detection