Virus chloropleth
This visualization displays the total Zika virus cases per U.S. state in 2016 using a choropleth map. The map uses a logarithmic color scale from white to green, with state boundaries drawn as SVG paths via D3’s `d3.geo.path` and the Albers USA projection. Tooltips reveal state names and case counts on mouseover. The code loads data from CSV files and merges it with GeoJSON state outlines, building on examples by Michelle Chandra and Scott Murray.
AI-generated descriptionA D3 map of West Nile virus and Zika virus infections in the United States. The map is being used by GEAR UP Virginia (http://www.schev.edu/index/students-and-parents/resources/gear-up) at James Madison University as part of the "Bugs to Barcodes" project. This was built by modifying Michelle Chandra’s Basic US State Map - D3, which was built by modifying choropleth example code by Scott Murray, tooltip example code by Malcolm Maclean, and legend code example by Mike Bostock.
forked from <a href='http://bl.ocks.org/michellechandra/'>michellechandra</a>'s block: <a href='http://bl.ocks.org/michellechandra/0b2ce4923dc9b5809922'>Basic US State Map - D3</a>
forked from <a href='http://bl.ocks.org/scresawn/'>scresawn</a>'s block: <a href='http://bl.ocks.org/scresawn/a12c721027ebade8c68a25323c02e7d7'>West Nile Virus</a>
forked from <a href='http://bl.ocks.org/scresawn/'>scresawn</a>'s block: <a href='http://bl.ocks.org/scresawn/9b74f1446cad0f78e8972b84aa47e04e'>Virus chloropleth</a>
forked from <a href='http://bl.ocks.org/scresawn/'>scresawn</a>'s block: <a href='http://bl.ocks.org/scresawn/ca24ab7c1840f5566744998d3ed96a69'>Virus chloropleth</a>