I actually built this around February/March of 2020 but I kinda forgot about it. Im deciding to release it now.
This globe uses data from the Johns Hopkins University Center for Systems Science and Engineering and you can find their GitHub repository at https://github.com/CSSEGISandData/COVID-19.
The process of generating data for the map is done in the data-processor folder. There is a time_series_covid19_confirmed_global.csv file which you need to replace with the most current version of the data https://github.com/CSSEGISandData/COVID-19/blob/master/csse_covid_19_data/csse_covid_19_time_series/time_series_covid19_confirmed_global.csv. I will try to update this repository as often as possible but I'm pretty busy.
After that, run python3 generate_data.py in the data-processor directory. It will run a script which transforms the John Hopkins data into the form which Google Javascript WebGL Globe Toolkit will be able to interpret.
Now go to your browser and open the index.html file. It should work and give you something that looks like this:
I wrote it in a rush so I could put it on my University of Waterloo application. Feel free to build on it or send a pull request.
Thanks to John Hopkins for making all of data publicly accessible.