UNAIDS 2019, Reference This edition of UNAIDS data shows the results of some of those successes, but also the challenges that remain. It contains the very latest data on the world’s response to HIV, consolidating a small part of the huge volume of data collected, analysed and refined by UNAIDS over the years. The full data set of information for 1990 to 2018 is available on aidsinfo.unaids.org.