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Two fundamental strategies are possible: (a) mitigation, which focuses on slowing but not necessarily stopping epidemic spread –reducing peak healthcare demand while protecting those most at risk of severe disease from infection, and (b) suppression, which aims to reverse epidemic growth, reducing case numbers to low levels and maintaining that situation indefinitely.
Ta. Paper suggests SK and China did B, and that's our only realistic option.
I just skimmed the paper but it seems to explain the difference. Looks to be worth a proper read.