摘要近年来,男男性行为人群（men who have sex with men,MSM）逐步成为全球和我国艾滋病流行的重点人群。中国新报告艾滋病病毒感染者中男性同性传播比例由2006年的2.5%增至2013年的21.4%。2013年联合国艾滋病规划署估计,中国MSM人群艾滋病感染率为6.7%,尤以上海、北京、天津等大城市的感染率为高。
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