Fig. 4: Trajectory of HIV incidence among men who have sex with men (MSM) in Taiwan, 2020–2050.
From: A modeling study of pre-exposure prophylaxis to eliminate HIV in Taiwan by 2030

a Effect of a pre-exposure prophylaxis (PrEP) program serving young, high-risk, HIV-negative MSM aged 15–44 years at different PrEP coverage rate. b Effect of annual HIV testing among young, high-risk MSM aged 15–44 years, followed by the immediate initiation of antiretroviral therapy (ART) in 90% of new HIV diagnoses. c Synergism between PrEP and HIV test-and-treat. The World Health Organization defines the threshold for HIV elimination as an annual HIV incidence of less than 1 per 1000 person-years.