AIDS: April 2017, Volume 31, Supplement 1
The Joint United Nations Programme on HIV/AIDS (UNAIDS) publishes estimates of the HIV epidemic every year. For 2016, estimates are available for 160 countries representing 98% of the global population. This special supplement, which details the methods used to produce these estimates, further supports the routine publication of data sources and methods used as part of an open and transparent process. It provides updates of the evolving understanding of the data on which the estimates are based, the methods used to derive the estimates, justification of changes in these methods, and the sources of new data available to inform these modifications.