{"version":"1.0","type":"rich","title":"Fork of ILINet Flu Surveillance Data","description":"This visualization displays the total annual influenza cases in the U.S., with individual curves for each year from 2015 to 2019 plotted by week of the year. The chart makes it easy to compare seasonal patterns, such as the high peak in early 2018 and the extended flu season in 2019. The code uses `vega-lite-api` to define the line mark and aggregations, with the data imported via `d3.csv` from a Gist. The use of a categorical color scale for the year field is unordered, making it harder to read chronological trends since darker colors do not necessarily indicate more recent years.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b7f5efa363a24542a254fe32acb72d83?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}