{"version":"1.0","type":"rich","title":"ILINet Flu Surveillance Data","description":"This visualization displays ILINet flu surveillance data from the CDC, plotting weekly observations since 2015. Each circle represents a state’s weekly report, with color encoding year, position encoding the selected field (such as ILI percentage or patient totals), and circle size encoding ILITOTAL patient counts, revealing seasonal flu spikes. A React dropdown menu lets users switch between data fields, which dynamically updates the Vega-Lite specification via vega-lite-api. The chart is rendered with Vega 5, Vega-Lite 4, and d3.csv for data loading, with tooltips provided by vega-tooltip.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/079d9c2c45764ecd855dd5acaf09b47c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}