This MSM is the abbreviation of English menwhohavesexwithmen. In China, it is mostly translated as a man who has sex with men, which is what everyone calls homosexuality. Correspondingly, there is WSW, which is the contact between women and women.

Promote the early detection of high-risk and infected MSM; To construct a dynamic model of AIDS transmission in MSM population coupled complex network, evaluate the influence of early detection of patients on AIDS epidemic law and disease burden, and optimize AIDS prevention and control strategies.

Men who have sex with men (MSM) are a sensitive and hidden group. At present, due to the lack of understanding of this group, AIDS prevention and control management can not find patients in this group in time, and the HIV infection rate continues to rise and spread to young students. The development of mobile Internet and the appearance of MSM websites provide opportunities and ways to understand this group.

Aiming at the bottleneck of current AIDS prevention and control management, this project plans to integrate MSM AIDS-related data from cyberspace and physical space, and use multidisciplinary theories and methods such as system theory, big data and landscape epidemiology to establish a dynamic MSM AIDS panoramic information identification network to grasp the social characteristics of MSM people.