Hepatitis B vaccines progressed from blood vaccines to recombinant vaccines, then to peptide vaccines and DNA vaccines, to their functions extended from prophylactic to therapeutic.

• 从第一代血源性疫苗到重组乙肝疫苗，再到合成肽疫苗和DNA疫苗，乙肝疫苗的研制技术不断进步，其应用范围也已从预防扩展到治疗。