{"version":"1.0","type":"rich","title":"US COVID Vaccination Circles","description":"A map of the United States shows the percentage of each state’s eligible population fully vaccinated against COVID-19 as of September 4, 2021, with circle radius proportional to that percentage. Built with D3 v5 and TopoJSON, the visualization uses `d3.geoPath` to render state boundaries and a linear scale to size the circles, which are positioned using state centroids from a JSON file. Vaccination data comes from a CSV of state-level records, and the SVG circles are semi-transparent blue.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/54d07b8746334cae8694b1687cc8e204?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}