HIV研究人员希望利用某种物质(通常是病毒自身的一部分)研制出疫苗，刺激免疫系统释放抵抗病毒的抗体。
HIV researchers hope to make a vaccine from a substance — usually a piece of the virus itself — that will provoke the immune system into releasing virus-fighting antibodies.
他们已经在酵母细胞的基础上向前推进，正在提取作为老鼠免疫系统一部份的T细胞。
They have already moved from yeast cells and are extracting t cells, which are part of the immune system, from mice.
只要遇到一个“非本体”分子，就有可能是病原体的一部分，免疫系统就会将它消灭。
Whenever it meets one that is "not self" and thus likely to be part of a pathogen, it destroys it.
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