[Basic immunization of vaccines is fundamental, and booster immunization is the guarantee: Booster immunization and its public health value].

Booster immunization is the following vaccination after a period of vaccine primary immunization schedule in order to maintain immunity against a certain pathogen. In this article, the immunological mechanism of booster immunization is elaborated, and the effectiveness and public health value of booster immunization for common vaccines is discussed. Subsequently, three hot issues of general concern in booster immunization are addressed, and the public health viewpoint that "Primary immunization of vaccines is fundamental, and booster immunization is the guarantee" is emphasized, so as to raise awareness of the importance and necessity of booster immunization as well as to provide scientific evidences for vaccine immunization practice.加强免疫是某些疫苗完成基础免疫一段时间后，为持续保持对某种病原体的免疫力而再次进行的接种。本文对疫苗加强免疫的一些基础理论和常见疫苗加强免疫的作用与效果进行阐述，探究了在加强免疫方面普遍关注的3个热点问题，重点强调了“做好疫苗基础免疫是根本，加强免疫是保障”的公共卫生观点，以期为提高对加强免疫重要性和必要性的认识、科学指导疫苗免疫工作实践提供科学参考。.