HIV感染流行初期(80年代中期)世界卫生组织将其分为3种类型:1.以同性恋传播为主,感染者主要是同性恋和两重性恋(同性恋和异性恋)男子;通过静脉注射毒品的血行感染开始增多,妇女感染较少,母婴传播不多见。该类型主要见于北美、西欧、澳大利亚、新西兰和一些拉美国家。2.以异性恋传播为主,妇女感染增多,有些地区90％的妓女被感染,母婴传播成为主要问题,某些地区 Early in the HIV epidemic (in the mid-1980s) World Health Organization divided it into three types: 1. Homosexual transmission, with predominantly homosexual and bisexual (homosexual and heterosexual) men; blood by intravenous drug use Infections have started to increase, women have fewer infections, and mother-to-child transmission is rare. This type is mainly found in North America, Western Europe, Australia, New Zealand and some Latin American countries. 2. Heterosexual transmission is predominant, with an increase in the number of women infected, 90% of prostitutes infected in some areas and mother-to-child transmission as major problems, and in some areas