{"version":"1.0","type":"rich","title":"US Daily COVID-19 Vaccination Dashboard","description":"This dashboard visualizes COVID-19 vaccination data across U.S. states, combining a map with a brushable time-series bar chart. The map displays circular marks positioned via `d3.forceSimulation` with `forceX` and `forceY` to avoid overlaps, sized by vaccination rates. The lower bar chart shows daily doses for a state selected from a dropdown menu, and brushing it updates the map’s date using `d3.brushX`, redrawing circles via SVG with `d3.transition`. Data comes from a CSV of state-level vaccination records, rendered with React, D3 v6, and TopoJSON.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a6e4f6c032e04cd5b529c7782f947210?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}