Fig. 1
From: Pre-exposure prophylaxis (PrEP) in an era of stalled HIV prevention: Can it change the game?
An illustration of the last 20Â year of ARV-based prevention product development. Events above the timeline are related to the ARV-based prevention product pipeline and those below the line denote important milestones related to HIV prevention and care over the past 20Â years. Dates and products represent timing of results unless otherwise noted. Data for this timeline were extracted from several sources [30,31,32,33,34]