计划免疫工作是贯彻“预防为主”方针的重要措施，是预防和控制严重危害儿童健康的几种传染病的最经济、最简单易行的手段，我国政府把实现普及儿童免疫目标纳入国民经济和社会发展规划，卫生部门把它作为卫生防疫工作的首要任务，世界卫生组织把它作为“２０００年人人享有卫? Planned immunization work is an important measure to implement the principle of “prevention first” and the most economical and easiest way to prevent and control several infectious diseases that seriously endanger the health of children. My government has incorporated the goal of universal access to children’s immunization into the national economy And social development planning, the health authorities regard it as the primary task of health and epidemic prevention work. The World Health Organization regards it as the "