随着科学技术的发展 ,各种疫苗已成为当前防病的一项重要手段 ,儿童计划免疫工作 ,已越来越引起各级卫生防疫部门的重视和全社会及儿童家长的关注 ,如何做到免疫接种安全有效 ,我们认为 ,在实践中必须严格掌握以下几点 :1　树立严格的无菌观念每次注射时必须用灭菌针头及灭菌注 With the development of science and technology, all kinds of vaccines have become an important means of disease prevention. Children’s planned immunization work has drawn more and more attention from the health and epidemic prevention departments at all levels and the concern of all the society and children’s parents. How to do it Immunization is safe and effective, we believe that in practice we must strictly grasp the following points: 1 to establish a strict sterile concept must be used with each sterilization needle sterilization and sterilization Note