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男男性接触者亦称男男性行为者(MSM),是指与男性发生过性关系的男性。根据相关文献资料显示,MSM是HIV/AIDS的主要高危人群之一,且这一群体的规模正逐渐扩大,防控形势日益严峻。现阶段我国艾滋病传播途径以性传播为主,其中男男同性性传播比例上升明显。2012年1-10月新报告的艾滋病病毒感染者中经性途径传播所占比例
Men who have sex with men Men are also known as male sex workers (MSM), refers to men who have sex with men. According to relevant literature, MSM is one of the major high-risk groups of HIV / AIDS, and the scale of this group is gradually expanding, and the situation of prevention and control is becoming more and more serious. At this stage of transmission of AIDS in China mainly to sexual transmission, including male and the same sex transmission increased significantly. Proportion of newly reported HIV transmission among sexually transmitted infections in January-October 2012