A choropleth map visualizes the global share of the population infected with HIV/AIDS in 2017, with countries colored on a sequential yellow-to-red scale based on prevalence rates. Countries lacking data appear in gray. The visualization uses React with D3 v7, employing `geoNaturalEarth1` and `geoPath` for map projection, `topojson` for world atlas geometry, and `scaleSequential` with `interpolateYlOrRd` for the color encoding. Data comes from the IHME HIV prevalence CSV dataset.