This visualization plots global COVID-19 death tolls over time for each country, using a logarithmic y-axis to accommodate vast differences in scale. A Voronoi overlay, built with `d3.Delaunay`, maps each data point to its nearest region, enabling hover interactions that highlight the corresponding country's line in black. The chart is rendered as an SVG using React, D3 v6 for scales and axes, and draws data from the CSSEGISandData COVID-19 GitHub repository.