Successfully eliminated smallpox vaccine Vaccinia here could serve as a carrier of HIV virus, the expression of proteins in the human body to stimulate the human body a wide range of immune response.

• 曾成功消灭了天花的牛痘苗，在这里可充当HIV病毒的载体，在人体内表达蛋白，刺激人体产生广泛的免疫反应。