This choropleth map shows confirmed COVID-19 cases per department in Argentina, with a logarithmic color scale from light yellow to deep purple, a custom legend, and a zoomable view. It renders SVG paths using `d3.geoPath` with a `geoTransverseMercator` projection, and loads TopoJSON data from a GitHub repository. The visualization uses D3 v5, `d3-geo-projection.v2`, `topojson`, and a linear gradient for the color bar, with tooltips via appended `title` elements.