Covid-19 Time Series: Total Number of Cases Worldwide Since 01/02/22
This visualization displays the cumulative number of COVID-19 cases worldwide on a Mercator projection map, with each country represented by an orange circle whose radius scales with case count. A date slider lets users scrub through time from January 22, 2020, with circles updating via d3 transitions. Built with D3 v5, it uses d3.geoPath, d3.geoMercator, d3.scaleSqrt, and d3-zoom for interactivity. Hovering reveals tooltips with region and case totals. Data comes from Johns Hopkins via the Humanitarian Data Exchange, rendered as SVG with smooth animations.
AI-generated descriptionCovid-19 cases in each country from 1/22/20 until today. Each circle has a tooltip showing the region and total cumalative cases.
Due to delays in reporting, cases may not render for today's date.
Data source from Johns Hopkins https://data.humdata.org/dataset/novel-coronavirus-2019-ncov-cases