{"version":"1.0","type":"rich","title":"Fork of ILINet Flu Surveillance Data","description":"This line chart tracks total ILI flu cases in the US per week, with individual curves for each year from 2015 to 2019, using an ordered color scale where darker shades indicate more recent years. Built with the vega-lite-api and d3.csv to load CDC FluView data, the visualization aggregates ILITOTAL by year, region, and week before encoding week on the x-axis, case totals on the y-axis, and year as an ordinal color field. The result enables direct year-over-year comparisons, highlighting seasonal peaks and variations without interaction.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}