艾滋病,即获得性免疫缺陷综合征,是一种新的传染病,由人免疫缺陷病毒(HIV)引起。自1981年美国首次报道以来,在世界许多地区很快广泛蔓延,迄今已有130多个国家报告7万余例。据世界卫生组织估计,全世界受此病毒感染者可能已有500～1,000万人。本病病死率高,因此引起了国际 AIDS, acquired immunodeficiency syndrome, is a new infectious disease caused by the human immunodeficiency virus (HIV). Since the first report of the United States in 1981, it has spread rapidly in many parts of the world. So far, more than 70,000 reports have been reported by more than 130 countries. According to the estimates of the World Health Organization, 500 to 10 million people may already be infected by this virus in the world. The high mortality rate of this disease, it has caused international