This chart shows global coronavirus deaths over time as multiple gray trend lines, one per country, on a logarithmic y-axis. Hovering over a line highlights that country’s series in black. The chart uses a Voronoi overlay built with `d3.Delaunay` and `d3.delaunay.voronoi` to make the thin lines easier to target with the mouse, mapping each point to its nearest data cell in the SVG. Data comes from the Johns Hopkins COVID-19 global deaths time series, parsed via `d3.csv` and `timeParse`. The visualization is rendered in React with D3 scales and axes (`scaleTime`, `scaleLog`, `axisBottom`, `axisLeft`).