Objective To study the production process of purified Japanese encephalitis (JE) vaccine from Vero cells cultivated in roller bottles to improve the quality of JE vaccine.

• 目的研究用15L转瓶培养非洲绿猴肾传代细胞（Vero细胞）生产纯化流行性乙型脑炎（以下简称乙脑）疫苗的工艺，提高乙脑疫苗的质量。