几种正处于开发阶段的实验性疫苗(包括大流行性流感疫苗和疟疾疫苗)也添加了角鲨烯，用于增强疫苗效力。
Squalene is being added to improve the efficacy of several experimental vaccines including pandemic flu and malaria vaccines which are being developed.
葡萄牙科学家说，他们研发出一种实验性疫苗能防止蛀牙，而它已在实验室的老鼠身上证实有效，这将有助开发防止人类龋齿的疫苗。
Portuguese scientists said they had developed an experimental vaccine against tooth decay which was successful in laboratory tests on rats and could pave the way for a version that works for humans.
此项研究显示，实验性疫苗使16000名泰国志愿者感染艾滋病毒的风险减少了近三分之一。研究的全部细节已经公布在《新英格兰医学杂志》上。
Full details of the study, which showed the experimental vaccine prevented nearly one-third of infections among 16, 000 ordinary Thai volunteers, were published in the New England Journal of Medicine.
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