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来自美国和中国的科研人员近日在《科学》杂志上共同撰文宣布，部分人体内存在一种能阻止艾滋病发作的特殊蛋白质。这个新发现有可能帮助人类找到有效治疗艾滋病的方法。目前全世界有大约4 000万人感染了艾滋病毒，但从20世纪80年代中期以来，科学家发现，约有2%的艾滋病病毒携
Researchers from the United States and China jointly wrote in Science recently that in some people there is a special protein that can stop the onset of AIDS. This new discovery may help people find ways to effectively treat AIDS. About 40 million people are now living with HIV worldwide, but since the mid-1980s scientists have found that about 2% of all HIV carriers