Map Visualization of COVID-19 Cases in the U.S.
This map visualizes the number of confirmed COVID-19 cases per U.S. state as of late March 2020, using a choropleth where darker shades indicate higher case counts. Hovering reveals the state name, while clicking toggles the display of case numbers directly on each state. The visualization uses D3 v4 with a `geoAlbersUsa` projection and `d3.geoPath` to render SVG state boundaries, and a `scaleLinear` maps case data from CSV files to a color range. Data originates from state health agencies, hospitals, and the CDC via the New York Times.
AI-generated descriptionThis map is a visualization of known COVID-19 cases in each U.S state as of 1:30 P.M. E.T., Mar. 27.
- Hover to see the state name
- Mouseover to see the number of cases.
- Click to toggle show/hide the number of cases.
Data Source: State and local health agencies, hospitals, C.D.C. https://www.nytimes.com/interactive/2020/us/coronavirus-us-cases.html