{"version":"1.0","type":"rich","title":"Heatmap for number of infection rate at orign of pandemic","description":"This interactive heatmap visualizes the number of infected individuals across regions and age categories during the early pandemic. It uses a red sequential color scale to encode counts, with Hubei and Shaanxi showing the highest infection numbers, particularly in older age groups. Built with D3 v4, the visualization renders as an SVG using `d3.scaleBand` for axes, `d3.scaleSequential` with `d3.interpolateReds` for colors, and includes tooltip interactions on hover. Data comes from the `age_v2.csv` file.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5f853585a2014caa954d0ec01302987f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}