It is now a quarter-century since the acquired immune deficiency syndrome (AIDS) was recognized. The knowledge that has been gained since then has been breathtaking, and the pace at which basic research has been translated into lifesaving treatments is unprecedented.
自从免疫缺乏综合症（AIDS）被人们认识以来已经过去了二十五个年头。从那时起所获得的知识是激动人心的，而基础研究被转化成拯救生命的治疗方法的步伐也是前所未有的。