This example demonstrates loading and parsing a CSV dataset of COVID-19 vaccination trends in the US, displaying a summary of the data‘s size, row count, and column count. The visualization uses d3.csv to fetch and parse the data from a GitHub Gist, then formats the statistics with d3.csvFormat. The code also includes commented-out alternatives using the Fetch API with async/await and d3.csvParse, illustrating different approaches to asynchronous data loading in D3 v5.