How to test and trace if you don’t have enough tests

[Edit: I now have a follow-up post that adapts this analysis to real-world constraints!] As we continue our worldwide fight with the coronavirus, many countries are looking to gradually transition away from strict lockdowns and toward effective test-and-trace programs. The idea is that if we can test people on a mass scale and track down … Continue reading How to test and trace if you don’t have enough tests