This visualization displays the number of hospitalized confirmed COVID-19 patients for each county, using a horizontal bar chart with an orange grid. Built with React and D3 v5, it loads CSV data via `d3.csv`, filters to the top 20 counties, and renders SVG rectangles scaled by `d3.scaleLinear` for the x-axis and `d3.scaleBand` for the y-axis. Tick labels and grid lines are generated from `xScale.ticks()`. The chart updates dynamically when the data loads, showing the title in magenta above the plot.