A bar chart displays the total COVID-19 deaths for twelve countries, forming a ranked comparison of mortality. The visualization loads CSV data from a GitHub gist and renders horizontal bars using React and D3 v5. Code uses `d3.csv`, `scaleBand`, and `scaleLinear` to map country names and death counts to SVG rectangles. Axis ticks and gridlines are drawn manually with `line` and `text` elements, while the chart title appears in the HTML heading.