论文部分内容阅读
本文着重分析了乙型肝炎(HB)疫苗的特性以及有关HB疫苗加入扩大免疫规划(EPI)的一系列问题。
This article focuses on the characteristics of the hepatitis B vaccine and a series of questions about the addition of the HB vaccine to the Expanded Immunization Program (EPI).