ILINet Flu Surveillance Data

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ILINet Flu Surveillance Data

✓ Published0🌍 Public

Last edited Oct 30, 2020

Created on Oct 30, 2020

Forked from ILINet Flu Surveillance Data

This line chart displays annual national ILI flu cases across weeks, with each year’s curve overlaid for direct comparison, revealing 2018’s peak in mid-February and 2019’s extended flu season. The visualization aggregates total cases by year, region, and week using an ordered categorical color scale for years, though the encoding is unordered despite the temporal field. Built with vega-lite-api, vega-lite, and d3.csv, it renders via SVG from CDC FluView Interactive data, with axes and styling configured for readability.

AI-generated description

This variant of the original work by Yu Zhang demonstrates improper use of an unordered color encoding for an ordered field (year), which makes it more difficult to read the chart, because you can't say anything like "darker is more recent".

A visualization constructed using the vega-lite-api.

This graph shows the national ILI total cases annually. The curves from 2015 to 2019 to the present date are displayed. This plot achieves the visualization of the annual ILI total patterns in general, and also provide a direct comparison year-over-year. We can tell 2018 is the year with highest Flu cases in mid February time, while 2019 has a more stretched Flu season comparing to other years.

When interations are introduced for the visualization together with Choropleths Map, we can select the individual yearly curve and present the map for that given year. We can also select a region or state and present a different portion of the dataset here to see more localized patterns.

See Data on Gist: ILINet Flu Surveillance Data

The original data comes from the CDC FluView Interactive

MIT Licensed

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