Data & Story
Nature Article (title: "Coronavirus latest: China death toll jumps dramatically")
Altair-based UpSets

Jupyter Notebook Launch Jupyter Notebook (use your own data to generate custom Altair-based UpSet plots!)

GitHub GitHub (source code)

Open Source Libraries

UpSet (interactive set visualization for more than three sets)

UpSetR (R implementation of UpSet visualization)

Altair (declarative statistical visualization library for Python)

Vega/Vega-Lite (visualization grammar for creating, saving, and sharing interactive visualization designs)