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截至2015年10月31日,陕西省异性性传播感染艾滋病病毒(HIV)病例占当年新发现病例的51.1%~([1])。随着现存活病例的逐年累加,经异性性行为传播感染HIV的风险还将持续增加。中国部分地区暗娼HIV感染率高达1%,远超一般人群(0.058%)~([2])。但是商业异性性行为通过嫖客这个“桥梁人群”将高危人群与一般人群联系起来~([3]),在部分地区经商业异性性传播已经成为经异性性传播感染HIV的主要途径~([4])。本文通过流行病学回顾性调
As of October 31, 2015, the number of HIV positive cases of sexually transmitted infections in Shaanxi Province accounted for 51.1% ~ ([1]) of newly detected cases in that year. As the number of existing live cases increases year by year, the risk of HIV transmission through heterosexual sex will continue to increase. The prevalence of HIV among female sex workers in some areas in China was as high as 1%, much higher than the general population (0.058%) ~ ([2]). However, commercial heterosexual behaviors link the high-risk groups with the general population through the “bridge crowd” of clients [3]. In some areas, commercial heterosexual transmission has become the main route of heterosexual transmission of HIV ~ ( [4]). This article through epidemiological retrospective tune