{"version":"1.0","type":"rich","title":"COVID-19 Map (Test Positivity Rate)","description":"A choropleth map of the United States colors each state by its seven-day COVID-19 test positivity rate, using a threshold scale with a green sequential palette. Hovering a state reveals its name, along with seven-day averages for deaths, positive tests, positive tests per 100,000, total tests, and positivity percentage, shown via appended `title` elements. The map is rendered using `d3.geoPath` with a `geoAlbersUsa` projection, driven by `topojson.feature` on state boundaries from a TopoJSON dataset. The visualization is built with React, and a `VoronoiOverlay` using `d3.Delaunay` enables smooth mouse interactions over the state paths.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6afca188b399426cab2e6375717f44e1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}