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自1981年美国报导了第一例获得性免疫缺陷综合症(艾滋病,AIDS)之后,艾滋病在易感人群(同性恋者、吸毒者、血友病患者等)中迅速传播,五年内,患此痫者已逾三万。该病的传播多由于混乱的性行为或接触了污染的血液或针头,但宫内感染亦有发生。该病特点为潜伏期长(3～4.5年),死亡率高(2年内死亡率达75％),经济损失大,且迄目前尚无疫苗或有效的抗病毒制剂可应用。
Since the United States reported the first case of Acquired Immune Deficiency Syndrome (AIDS, AIDS) in 1981, AIDS has spread rapidly among susceptible populations (homosexuals, drug users, hemophiliacs, etc.) and within five years, this epilepsy has been There are more than 30,000 people. The spread of the disease is mostly due to confusing sexual behavior or exposure to contaminated blood or needles, but intrauterine infections also occur. The disease is characterized by a long incubation period (3 to 4.5 years), a high mortality rate (a mortality rate of 75% within 2 years), and a large economic loss. Until now, no vaccines or effective antiviral agents have been available.