To understand the current situation of the construction of the integration mechanism of medical treatment and prevention in infectious disease hospitals in China, and to provide data support for the promotion of related work and policy formulation.

Based on the survey data of the construction of the integration mechanism of medical treatment and prevention in infectious disease hospitals in China, a quantitative analysis was conducted on the current situation of the related work of the integration of medical treatment and prevention in 97 secondary and tertiary infectious disease hospitals. A difference analysis was carried out on the current situation of the integration of medical treatment and prevention in different regions. Moreover, the t-SNE algorithm and data visualization were used to cluster the sample institutions for a comparative study at the hospital level.

Among the sample institutions in the eastern region, 46.51% had policy support related to the integration of medical treatment and prevention at the provincial (municipal) level, with an obvious advantage compared to other regions (P=0.001). The proportions of sample institutions in the eastern and central regions that established internal systems for the integration of medical treatment and prevention were higher (P=0.015), accounting for 27.91% and 28.57% respectively. In terms of the proportion of infectious disease hospitals that independently set up public health departments: the eastern region had the highest proportion, accounting for 72.09%; the northeastern region had the lowest proportion, accounting for 20.00%; and there were significant statistical differences among different regions (P=0.001). The t-SNE algorithm grouped the sample institutions into three categories: head tertiary hospitals, typical secondary hospitals and medium-sized hospitals. The construction of the integration mechanism of medical treatment and prevention in the three hospitals in head tertiary hospitals was significantly better than that in the other two categories.

The work on the integration of medical treatment and prevention for infectious diseases in China is still in the stage of exploration and breakthrough. All regions should explore the models and paths for the integration of medical treatment and prevention for infectious diseases in combination with local actual situations. The pilot construction of the integration of medical treatment and prevention of infectious diseases at both the "regional" and "hospital" levels should be coordinated，in order to promote infectious disease hospitals to better fulfill their public health functions, and take this as a breakthrough to open up the effective integration and interconnection of personnel, information and resources between medical institutions and disease control institutions.