第一个经基因工程制备的人类疫苗(Re combivax HB,药厂:Merck Sharp & Dohrile)目前已用于预防乙型肝炎感染和阻断患有慢性乙型肝炎母亲所引起的传染途径。这种应用DNA重组技术从一种面包酵母菌建立的基因工程中生产的乙型肝炎抗原疫苗,据默克公司的Robert Gerety医学博士介绍,自从1982年开始需要创制乙型肝炎 The first genetically engineered human vaccine (Re combivax HB, Merck Sharp & Dohrile) has now been used to prevent hepatitis B infection and to block the transmission of infections caused by chronically hepatitis B mothers. The Hepatitis B antigen vaccine, which uses recombinant DNA technology from a genetically engineered strain of baker’s yeast, according to Robert Gerety, MD, of Merck’s company, has been required to create Hepatitis B since 1982