Extended Data Fig. 1. HIV prevalence data by region and country.
a, b, HIV seroprevalence survey data (a) and ANC sentinel surveillance data (b) used in this analysis, by region and country. Colour indicates the data source. AIS, AIDS Indicator Survey; DHS, Demographic and Health Survey; MICS, Multiple Indicator Cluster Survey; PHIA, Population-based HIV Impact Assessment Survey. Shape type indicates whether a data source has point (GPS) or polygon location information. Size indicates the relative effective sample size for each source. A full list of data sources with additional details about data type (such as survey microdata and survey reports) and geographical details are provided in Supplementary Tables 2, 4.