For example, what if you could make a hepatitis vaccine that was good in one shot instead of three shots?

比方说,如果你研制的一种肝炎疫苗,只需接种一次,而不是三次会怎么样

耶鲁公开课 - 生物医学工程探索课程节选

The Hepatitis B subunit vaccine was produced at the same time that HIV-AIDS was being recognized as a problem in this country.

在乙肝亚基疫苗研制出来的同时,在该国家艾滋病开始被视为问题

耶鲁公开课 - 生物医学工程探索课程节选