Fig. 2From: Behavioral verification and risk factors of HIV cross-population transmission in China: analysis of national surveillance data 1989–2022Composition of HIV-infected individuals in China who have engaged in risky behaviors, from 1989 to 2022. Abbreviations: IDU = injection drug users; FPD = former plasma donors; MSM = men who have sex with men; HRHB = high-risk heterosexual behaviorBack to article page