{"version":"1.0","type":"rich","title":"Heatmap for number of infection rate at orign of pandemic","description":"This interactive heatmap visualizes the number of infections by age category across Chinese regions during the early pandemic. It uses a sequential red color scale to encode counts, with the highest values concentrated in Hubei, particularly among the 66+ age group. Built with D3.js v4, the visualization renders as SVG rectangles and includes hover tooltips that display exact cell values. The data comes from a CSV file containing location, age category, and infection counts.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/91eac32b661f4bbfb205a15617ce4c3f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}