I made yet another COVID-19 tracker, but it features some things I haven't seen elsewhere. Specifically it allows you to compare 2 countries and scrub data back in time to see how the virus spreads.
Source: John Hopkins API - https://github.com/CSSEGISandData/COVID-19
Source Code: https://github.com/kangabru/stop-killing-people
Built with React and d3. Happy to answer questions. Enjoy!