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艾滋病（ＡＩＤＳ）的广泛流行已成为全球最为瞩目的公共卫生和社会问题。至１９９９年底全球报告的艾滋病病人已达２２０万,估计艾滋病病毒（ＨＩＶ）感染人数为３３６０万人［１］。目前,亚洲已继北美、非洲之后成为全球ＨＩＶ感染上升最迅速、流行最严重的地区之一［１］。
The widespread AIDS epidemic has become the world’s most prominent public health and social issue. By the end of 1999, 2.2 million AIDS patients had been reported in the world and an estimated 33.6 million people were living with HIV [1]. At present, Asia has followed North America, and Africa has become one of the regions with the fastest-growing and most prevalent HIV infection in the world after that [1].