{"version":"1.0","type":"rich","title":"COVID Visualization","description":"This visualization displays the number of COVID-19 cases per US county using a choropleth map colored with a threshold-based scale. It loads US county boundary data from the `us-atlas` package and New York Times case data from GitHub, merging them via topojson features. The map is rendered as SVG paths using `d3.geoPath` with an Albers projection, and supports zooming via `d3.zoom`. Counties change fill opacity on hover and show case counts in tooltips.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/32a838ad34304ee0962520bfc9325cb5?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}