MMWR Morb Mortal Wkly Rep. 1991 Nov 22;40(46):792-4.
In the United States, human immunodeficiency virus (HIV) transmission has been associated with anal sex without use of condoms. However, surveys of sexual behavior among homosexual/bisexual men (i.e., men who have had sex with men) and evaluation results from intervention studies have consistently shown that such risks can be reduced. Despite such reductions in risk, relapse from safer sex to riskier practices has been documented among homosexual/bisexual men. Because the serostatus or HIV risk behaviors of any sex partner can be difficult to ascertain, especially for anonymous partners, anal sex with nonsteady partners without using a condom remains a high-risk behavior. This report summarizes an evaluation by CDC of behavior changes among homosexual/bisexual men involving anal sex with nonsteady partners without use of a condom. The evaluation examined community demonstration projects, funded by CDC in 1986, to assess methods of preventing the spread of HIV infection primarily among homosexual/bisexual men.
在美国，人类免疫缺陷病毒（HIV）传播与未使用避孕套的肛交有关。然而，对男同性恋者/双性恋男性（即与男性发生过性行为的男性）性行为的调查以及干预研究的评估结果一直表明，此类风险是可以降低的。尽管风险有所降低，但男同性恋者/双性恋男性中存在从安全性行为复归到危险性行为的记录。由于任何性伴侣的血清状态或HIV风险行为可能难以确定，尤其是对于匿名伴侣，与非固定伴侣进行无避孕套肛交仍然是一种高风险行为。本报告总结了美国疾病控制与预防中心（CDC）对男同性恋者/双性恋男性涉及与非固定伴侣无避孕套肛交行为变化的评估。该评估考察了1986年由CDC资助的社区示范项目以评估主要在男同性恋者/双性恋男性中预防HIV感染传播的方法。
