This chart displays cumulative COVID-19 death totals over time for multiple countries, drawn as individual lines on a logarithmic scale. A Voronoi overlay, built with d3-delaunay, partitions the plotting area into cells around each data point, so hovering any region highlights the corresponding country’s line in black. The visualization uses React with D3 v6 for scales and axes, and pulls data from the Johns Hopkins COVID-19 time series dataset, rendered as SVG.